120111112120 has 128 divisors (see below), whose sum is σ = 292023144000. Its totient is φ = 44312555520.

The previous prime is 120111112087. The next prime is 120111112127. The reversal of 120111112120 is 21211111021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120111112120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111112127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15856654 + ... + 15864226.

Almost surely, 2^120111112120 is an apocalyptic number.

120111112120 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 120111112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146011572000).

120111112120 is an abundant number, since it is smaller than the sum of its proper divisors (171912031880).

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

120111112120 is a wasteful number, since it uses less digits than its factorization.

120111112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153 (or 8149 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120111112120 its reverse (21211111021), we get a palindrome (141322223141).

The spelling of 120111112120 in words is "one hundred twenty billion, one hundred eleven million, one hundred twelve thousand, one hundred twenty".