122000661 is the routing number for Bank of America in Southern California. Note that B of A uses different routing numbers in different regions. The correct routing numbers can be found at the Bank of America website, or at the bottom of your checks.
6 ye
in exactly the same location as A apex
In exactly the same location as B
This is known as routing.
It is -1.2... (repeating).
6.5 is halfway.
Check the receiver or barrel.
It is -1.2... (repeating).
It is -1.2... (repeating).
Classful.
no router rip