111202112222120 has 128 divisors (see below), whose sum is σ = 264317955321600. Its totient is φ = 42020843943936.

The previous prime is 111202112222119. The next prime is 111202112222161. The reversal of 111202112222120 is 21222211202111.

111202112222120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 111202112222092 and 111202112222101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71034467 + ... + 72583053.

It is an arithmetic number, because the mean of its divisors is an integer number (2064984025950).

Almost surely, 2^{111202112222120} is an apocalyptic number.

111202112222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111202112222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132158977660800).

111202112222120 is an abundant number, since it is smaller than the sum of its proper divisors (153115843099480).

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

111202112222120 is a wasteful number, since it uses less digits than its factorization.

111202112222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549587 (or 1549583 counting only the distinct ones).

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

Adding to 111202112222120 its reverse (21222211202111), we get a palindrome (132424323424231).

The spelling of 111202112222120 in words is "one hundred eleven trillion, two hundred two billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty".