111100222120 has 32 divisors (see below), whose sum is σ = 260844001920. Its totient is φ = 42507910720.

The previous prime is 111100222091. The next prime is 111100222127. The reversal of 111100222120 is 21222001111.

It is a super-2 number, since 2×111100222120² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111100222120.

It is not an unprimeable number, because it can be changed into a prime (111100222127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60379636 + ... + 60381475.

It is an arithmetic number, because the mean of its divisors is an integer number (8151375060).

Almost surely, 2^111100222120 is an apocalyptic number.

111100222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100222120 is an abundant number, since it is smaller than the sum of its proper divisors (149743779800).

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

111100222120 is a wasteful number, since it uses less digits than its factorization.

111100222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120761145 (or 120761141 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111100222120 its reverse (21222001111), we get a palindrome (132322223231).

The spelling of 111100222120 in words is "one hundred eleven billion, one hundred million, two hundred twenty-two thousand, one hundred twenty".