111012212020120 has 64 divisors (see below), whose sum is σ = 255871585247040. Its totient is φ = 43321504512000.

The previous prime is 111012212020069. The next prime is 111012212020147. The reversal of 111012212020120 is 21020212210111.

It is a super-2 number, since 2×111012212020120² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111012212020094 and 111012212020103.

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, 390425524 + ... + 390709756.

It is an arithmetic number, because the mean of its divisors is an integer number (3997993519485).

Almost surely, 2^{111012212020120} is an apocalyptic number.

111012212020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012212020120 is an abundant number, since it is smaller than the sum of its proper divisors (144859373226920).

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

111012212020120 is a wasteful number, since it uses less digits than its factorization.

111012212020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522436 (or 522432 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111012212020120 its reverse (21020212210111), we get a palindrome (132032424230231).

The spelling of 111012212020120 in words is "one hundred eleven trillion, twelve billion, two hundred twelve million, twenty thousand, one hundred twenty".