122012122100 has 72 divisors (see below), whose sum is σ = 288895051200. Its totient is φ = 44358969600.

The previous prime is 122012122091. The next prime is 122012122139. The reversal of 122012122100 is 1221210221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7834121 + ... + 7849679.

Almost surely, 2^122012122100 is an apocalyptic number.

122012122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122012122100 is an abundant number, since it is smaller than the sum of its proper divisors (166882929100).

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

122012122100 is a wasteful number, since it uses less digits than its factorization.

122012122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22713 (or 22706 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122012122100 its reverse (1221210221), we get a palindrome (123233332321).

The spelling of 122012122100 in words is "one hundred twenty-two billion, twelve million, one hundred twenty-two thousand, one hundred".