Two factor authentication
I can’t login to my iCloud because of the two factor authentication and I don’t have access to the number where the code is being sent. Is there any other way to login or have the code sent to a new number or my mail??
See if anything here helps. If necessary, you can use account recovery as explained in the link at bottom of the article.
Verification code - how to get one and sign in with two-factor authentication.
You need to change/add the number on your Apple ID. After the change, allow up to 24 hours for the change to sync. Before trying to make the change, sign out of Messages/FaceTime on all devices/computers.