202122211100 has 18 divisors (see below), whose sum is σ = 438605198304. Its totient is φ = 80848884400.

The previous prime is 202122211099. The next prime is 202122211103. The reversal of 202122211100 is 1112221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122211103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1010610956 + ... + 1010611155.

Almost surely, 2^202122211100 is an apocalyptic number.

202122211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122211100 is an abundant number, since it is smaller than the sum of its proper divisors (236482987204).

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

202122211100 is a wasteful number, since it uses less digits than its factorization.

202122211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021222125 (or 2021222118 counting only the distinct ones).

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

Adding to 202122211100 its reverse (1112221202), we get a palindrome (203234432302).

The spelling of 202122211100 in words is "two hundred two billion, one hundred twenty-two million, two hundred eleven thousand, one hundred".