202012212012100 has 72 divisors (see below), whose sum is σ = 522772472170368. Its totient is φ = 66249967660800.

The previous prime is 202012212012071. The next prime is 202012212012187. The reversal of 202012212012100 is 1210212210202.

It is a happy 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, 6273655081 + ... + 6273687280.

It is an arithmetic number, because the mean of its divisors is an integer number (7260728780144).

Almost surely, 2^{202012212012100} is an apocalyptic number.

202012212012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012212012100 is an abundant number, since it is smaller than the sum of its proper divisors (320760260158268).

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

202012212012100 is a wasteful number, since it uses less digits than its factorization.

202012212012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547342405 (or 12547342398 counting only the distinct ones).

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

Adding to 202012212012100 its reverse (1210212210202), we get a palindrome (203222424222302).

The spelling of 202012212012100 in words is "two hundred two trillion, twelve billion, two hundred twelve million, twelve thousand, one hundred".