202012112100 has 72 divisors (see below), whose sum is σ = 604643175360. Its totient is φ = 52012311680.

The previous prime is 202012112087. The next prime is 202012112119. The reversal of 202012112100 is 1211210202.

202012112100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 11601192 + ... + 11618591.

It is an arithmetic number, because the mean of its divisors is an integer number (8397821880).

Almost surely, 2^202012112100 is an apocalyptic number.

202012112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012112100 is an abundant number, since it is smaller than the sum of its proper divisors (402631063260).

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

202012112100 is a wasteful number, since it uses less digits than its factorization.

202012112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23219829 (or 23219822 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202012112100 its reverse (1211210202), we get a palindrome (203223322302).

The spelling of 202012112100 in words is "two hundred two billion, twelve million, one hundred twelve thousand, one hundred".