20211202112112 has 120 divisors (see below), whose sum is σ = 61707262022640. Its totient is φ = 6124423127040.

The previous prime is 20211202112099. The next prime is 20211202112161. The reversal of 20211202112112 is 21121120211202.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 58322778 + ... + 58668294.

It is an arithmetic number, because the mean of its divisors is an integer number (514227183522).

Almost surely, 2^{20211202112112} is an apocalyptic number.

20211202112112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20211202112112 is an abundant number, since it is smaller than the sum of its proper divisors (41496059910528).

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

20211202112112 is a wasteful number, since it uses less digits than its factorization.

20211202112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382471 (or 382462 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20211202112112 its reverse (21121120211202), we get a palindrome (41332322323314).

The spelling of 20211202112112 in words is "twenty trillion, two hundred eleven billion, two hundred two million, one hundred twelve thousand, one hundred twelve".