202111111012120 has 64 divisors (see below), whose sum is σ = 455437806796800. Its totient is φ = 80722194948480.

The previous prime is 202111111012067. The next prime is 202111111012157. The reversal of 202111111012120 is 21210111111202.

It is a junction number, because it is equal to n+sod(n) for n = 202111111012094 and 202111111012103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238601577 + ... + 239447143.

It is an arithmetic number, because the mean of its divisors is an integer number (7116215731200).

Almost surely, 2^{202111111012120} is an apocalyptic number.

202111111012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202111111012120 is an abundant number, since it is smaller than the sum of its proper divisors (253326695784680).

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

202111111012120 is a wasteful number, since it uses less digits than its factorization.

202111111012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854608 (or 854604 counting only the distinct ones).

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

Adding to 202111111012120 its reverse (21210111111202), we get a palindrome (223321222123322).

The spelling of 202111111012120 in words is "two hundred two trillion, one hundred eleven billion, one hundred eleven million, twelve thousand, one hundred twenty".