12001112120 has 64 divisors (see below), whose sum is σ = 28905552000. Its totient is φ = 4470691968.

The previous prime is 12001112099. The next prime is 12001112153. The reversal of 12001112120 is 2121110021.

It is a congruent number.

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, 88982 + ... + 178661.

It is an arithmetic number, because the mean of its divisors is an integer number (451649250).

Almost surely, 2^12001112120 is an apocalyptic number.

12001112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001112120 is an abundant number, since it is smaller than the sum of its proper divisors (16904439880).

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

12001112120 is a wasteful number, since it uses less digits than its factorization.

12001112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267732 (or 267728 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001112120 its reverse (2121110021), we get a palindrome (14122222141).

The spelling of 12001112120 in words is "twelve billion, one million, one hundred twelve thousand, one hundred twenty".