202012210122100 has 72 divisors (see below), whose sum is σ = 504181302275840. Its totient is φ = 68820174184320.

The previous prime is 202012210122097. The next prime is 202012210122127. The reversal of 202012210122100 is 1221012210202.

It is a happy number.

202012210122100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 918962940 + ... + 919182739.

Almost surely, 2^{202012210122100} is an apocalyptic number.

202012210122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012210122100 is an abundant number, since it is smaller than the sum of its proper divisors (302169092153740).

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

202012210122100 is a wasteful number, since it uses less digits than its factorization.

202012210122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838145857 (or 1838145850 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202012210122100 its reverse (1221012210202), we get a palindrome (203233222332302).

The spelling of 202012210122100 in words is "two hundred two trillion, twelve billion, two hundred ten million, one hundred twenty-two thousand, one hundred".