Country code +232 is Sierra Leone in West Africa, and +232 22 is a landline in the capital, Freetown.
00 is a commonly used international access prefix, not part of the telephone number. +232 is the country code for Sierra Leone, in western Africa. +232 22 is the city code for Freetown, the capital of Sierra Leone.
Countries do not have postal codes, they are very geographically specific.
22+22+28+28=100.
It means that it is an incorrectly formatted international phone number for somewhere in West Africa. The plus sign should be attached to the country code, but there is no country code +22. The country codes +220 through +229 are different countries. See the related question for more.
491
22
-15 plus 4 plus -22 = -33-15 + 4 = -1111 + -22 = -33
Chapter 22, page 232 - 234
Mumbai is in area code 022, or +91 22 from outside India.
- 22 + (-83) + 5 = -22 - 83 + 5 = -100
They add up to 21/22
21/22