Kim Zolciak Biermann Wishes 'Heartbeat' Daughter Ariana Happy 22nd Birthday: 'Love You Mucho Baby'

The oldest of the 'RHOA' alum's six children turned 22 on Tuesday

Kim Zolciack is celebrating one of her daughters on her special day.

On Tuesday, the mom of six, 45, celebrated daughter Ariana on her 22nd birthday with a carousel of throwbacks shared on Instagram.

"Happy 22nd Birthday to my heartbeat @arianabiermann ❤️Ariana you have been a true joy to raise. Your independence, your strength, your love for others, your determination, your heart, and your love for God daily reminds me of what an incredible human being you truly are 🙏🏼," the proud mom wrote.

"You are such a blessing to not only me and your family but to everyone that has ever had the chance to meet you (even if it’s been for a second) I wish you a million more birthdays 🥳 a million more trips to Turks and Alaska!" The Real Housewives of Atlanta alum continued.

"I hope you have everything that you could ever dream of. I LOVE YOU MUCHO BABY ❤️❤️ P.S I hope you never stop sending singing videos it’s one of my favorite things 🤭."

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Related: Kim Zolciack-Biermann Celebrates Son Kash's 11th Birthday by Waking Him Up with Celebratory Song

The reality star has six children — 9-year-old twins Kaia Rose and Kane Ren, sons Kash and Kroy Jagger, 11 — with her estranged husband, former NFL pro, Kroy Biermann, 37, who is also the adopted dad to Zolciak’s daughters Brielle, 26, and Ariana.

Despite Biermann's second divorce filing at the end of August, the 45-year-old Real Housewives of Atlanta alum told her fans she’s working on their relationship.

In a now-expired Instagram Story previously reported by Page Six, Kim shared: “I’m living here not going anywhere!” while showing off her shoe closet at their shared Georgia home. “Been working on our marriage and have been living together as husband and wife. The lies daily are too much.”

A source told PEOPLE that Zolciak is "okay with" Ariana and Brielle continuing their relationship with Biermann amid the former couple's contentious breakup.

"She understands and is okay with it. She wants them to have a good relationship," a source told PEOPLE.

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