202112122188 has 24 divisors (see below), whose sum is σ = 499335831792. Its totient is φ = 63407724544.

The previous prime is 202112122181. The next prime is 202112122189. The reversal of 202112122188 is 881221211202.

It is not an unprimeable number, because it can be changed into a prime (202112122181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495372645 + ... + 495373052.

It is an arithmetic number, because the mean of its divisors is an integer number (20805659658).

Almost surely, 2^202112122188 is an apocalyptic number.

It is an amenable number.

202112122188 is an abundant number, since it is smaller than the sum of its proper divisors (297223709604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202112122188 is a wasteful number, since it uses less digits than its factorization.

202112122188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990745721 (or 990745719 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The spelling of 202112122188 in words is "two hundred two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred eighty-eight".