111022020120 has 64 divisors (see below), whose sum is σ = 363344797440. Its totient is φ = 26914428800.

The previous prime is 111022020079. The next prime is 111022020149. The reversal of 111022020120 is 21020220111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111022020096 and 111022020105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42052476 + ... + 42055115.

It is an arithmetic number, because the mean of its divisors is an integer number (5677262460).

Almost surely, 2^111022020120 is an apocalyptic number.

111022020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022020120 is an abundant number, since it is smaller than the sum of its proper divisors (252322777320).

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

111022020120 is a wasteful number, since it uses less digits than its factorization.

111022020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84107616 (or 84107612 counting only the distinct ones).

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

Adding to 111022020120 its reverse (21020220111), we get a palindrome (132042240231).

Subtracting from 111022020120 its reverse (21020220111), we obtain a square (90001800009 = 300003²).

The spelling of 111022020120 in words is "one hundred eleven billion, twenty-two million, twenty thousand, one hundred twenty".