get 2 way factor authentication code sent to email

Not directly.

Apple will only send it to voice or SMS-capable phone numbers. (i.e. your pre-designated Trusted Numbers)

However, there are 3rd party services available which can receive SMS and "relay" them as eMail.

No.

Your Trusted Numbers can NOT be changed either by us here at ASC or by Apple via insecure means.

Much like backups, “Trusted Numbers” MUST be setup by you BEFORE you need to use them; and can only be configured by you either from a Trusted Device or else from a 2FA-authenticated web browser.