202112100012 has 48 divisors (see below), whose sum is σ = 496485234560. Its totient is φ = 63815931648.

The previous prime is 202112099947. The next prime is 202112100013. The reversal of 202112100012 is 210001211202.

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

It is not an unprimeable number, because it can be changed into a prime (202112100013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675188 + ... + 1791780.

Almost surely, 2^202112100012 is an apocalyptic number.

It is an amenable number.

202112100012 is an abundant number, since it is smaller than the sum of its proper divisors (294373134548).

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

202112100012 is a wasteful number, since it uses less digits than its factorization.

202112100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124222 (or 124220 counting only the distinct ones).

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

Adding to 202112100012 its reverse (210001211202), we get a palindrome (412113311214).

The spelling of 202112100012 in words is "two hundred two billion, one hundred twelve million, one hundred thousand, twelve".