111011222222120 has 64 divisors (see below), whose sum is σ = 274310829936000. Its totient is φ = 40096792871680.

The previous prime is 111011222222101. The next prime is 111011222222177. The reversal of 111011222222120 is 21222222110111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111011222222092 and 111011222222101.

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, 846572804 + ... + 846703923.

It is an arithmetic number, because the mean of its divisors is an integer number (4286106717750).

Almost surely, 2^{111011222222120} is an apocalyptic number.

111011222222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011222222120 is an abundant number, since it is smaller than the sum of its proper divisors (163299607713880).

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

111011222222120 is a wasteful number, since it uses less digits than its factorization.

111011222222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693276898 (or 1693276894 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111011222222120 its reverse (21222222110111), we get a palindrome (132233444332231).

The spelling of 111011222222120 in words is "one hundred eleven trillion, eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty".