While this is quite rare, it’s possible to have a birthday with an angel number. An example would be if you were born on February 22nd of 2022, your birthday would be 02/22/2022. However, this wouldn’t apply to birthday numerology since it only uses the day you were born to calculate your inherent strengths and skills.
That being said, if your birthday contains an angel number it could mean you have a unique path, purpose, or connection to the spirit realm. But keep in mind that the interpretation of angel numbers and personal symbolism is a subjective experience.