111121101010120 has 32 divisors (see below), whose sum is σ = 253543920621120. Its totient is φ = 43822406031040.

The previous prime is 111121101010103. The next prime is 111121101010141. The reversal of 111121101010120 is 21010101121111.

It is a self number, because there is not a number n which added to its sum of digits gives 111121101010120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19563571282 + ... + 19563576961.

It is an arithmetic number, because the mean of its divisors is an integer number (7923247519410).

Almost surely, 2^{111121101010120} is an apocalyptic number.

111121101010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111121101010120 is an abundant number, since it is smaller than the sum of its proper divisors (142422819611000).

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

111121101010120 is a wasteful number, since it uses less digits than its factorization.

111121101010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39127148325 (or 39127148321 counting only the distinct ones).

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

Adding to 111121101010120 its reverse (21010101121111), we get a palindrome (132131202131231).

The spelling of 111121101010120 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred one million, ten thousand, one hundred twenty".