111010111102120 has 64 divisors (see below), whose sum is σ = 253980883357200. Its totient is φ = 43656582727680.

The previous prime is 111010111102103. The next prime is 111010111102141. The reversal of 111010111102120 is 21201111010111.

It can be written as a sum of positive squares in 8 ways, for example, as 53930605312516 + 57079505789604 = 7343746^2 + 7555098^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111010111102120.

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, 4710685 + ... + 15627244.

Almost surely, 2^{111010111102120} is an apocalyptic number.

111010111102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111010111102120 is an abundant number, since it is smaller than the sum of its proper divisors (142970772255080).

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

111010111102120 is a wasteful number, since it uses less digits than its factorization.

111010111102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20340238 (or 20340234 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111010111102120 its reverse (21201111010111), we get a palindrome (132211222112231).

The spelling of 111010111102120 in words is "one hundred eleven trillion, ten billion, one hundred eleven million, one hundred two thousand, one hundred twenty".