202012102111020 has 96 divisors (see below), whose sum is σ = 630427860518400. Its totient is φ = 48032598887424.

The previous prime is 202012102110991. The next prime is 202012102111033. The reversal of 202012102111020 is 20111201210202.

It is a super-2 number, since 2×202012102111020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5211851160 + ... + 5211889919.

It is an arithmetic number, because the mean of its divisors is an integer number (6566956880400).

Almost surely, 2^{202012102111020} is an apocalyptic number.

202012102111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012102111020 is an abundant number, since it is smaller than the sum of its proper divisors (428415758407380).

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

202012102111020 is a wasteful number, since it uses less digits than its factorization.

202012102111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423741127 (or 10423741125 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202012102111020 its reverse (20111201210202), we get a palindrome (222123303321222).

The spelling of 202012102111020 in words is "two hundred two trillion, twelve billion, one hundred two million, one hundred eleven thousand, twenty".