111120111210120 has 64 divisors (see below), whose sum is σ = 333811430424000. Its totient is φ = 29591932163328.

The previous prime is 111120111210103. The next prime is 111120111210137. The reversal of 111120111210120 is 21012111021111.

It is an interprime number because it is at equal distance from previous prime (111120111210103) and next prime (111120111210137).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111120111210120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626434275 + ... + 626611634.

It is an arithmetic number, because the mean of its divisors is an integer number (5215803600375).

Almost surely, 2^{111120111210120} is an apocalyptic number.

111120111210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111120111210120 is an abundant number, since it is smaller than the sum of its proper divisors (222691319213880).

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

111120111210120 is a wasteful number, since it uses less digits than its factorization.

111120111210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253046662 (or 1253046658 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111120111210120 its reverse (21012111021111), we get a palindrome (132132222231231).

The spelling of 111120111210120 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred eleven million, two hundred ten thousand, one hundred twenty".