Area code +44 121 is Birmingham, England, United Kingdom
There is no North American (US, Canada, etc.) area code +1 121; North American area codes never begin with 1. There are several +1 21X area codes, all in the US.
The area of 121 m2 is 121 square meters.
121
The area of Babadag is 121 square kilometers.
The area of Gomel is 121 square kilometers.
The area of Sandefjord is 121 square kilometers.
The area of Sibiu is 121 square kilometers.
The area of Fano is 121 square kilometers.
The area of Doljevac is 121 square kilometers.
121 x 2.54 x 2.54 = 780.6 square cms approximately
121 square miles
6.21
11 units. (It is the square root of 121, and A=S^2 => 121=S^2 => S=11.)