120111122112 has 56 divisors (see below), whose sum is σ = 318144851136. Its totient is φ = 39992840448.

The previous prime is 120111122093. The next prime is 120111122119. The reversal of 120111122112 is 211221111021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120111122091 and 120111122100.

It is not an unprimeable number, because it can be changed into a prime (120111122119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170718 + ... + 519005.

It is an arithmetic number, because the mean of its divisors is an integer number (5681158056).

Almost surely, 2^120111122112 is an apocalyptic number.

120111122112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120111122112 is an abundant number, since it is smaller than the sum of its proper divisors (198033729024).

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

120111122112 is an equidigital number, since it uses as much as digits as its factorization.

120111122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690645 (or 690635 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120111122112 its reverse (211221111021), we get a palindrome (331332233133).

The spelling of 120111122112 in words is "one hundred twenty billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twelve".