12011021112120 has 64 divisors (see below), whose sum is σ = 36072791406720. Its totient is φ = 3199407579264.

The previous prime is 12011021112107. The next prime is 12011021112133. The reversal of 12011021112120 is 2121112011021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12011021112107) and next prime (12011021112133).

It is a super-2 number, since 2×12011021112120² (a number of 27 digits) contains 22 as substring.

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 12011021112120.

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, 55068582 + ... + 55286261.

It is an arithmetic number, because the mean of its divisors is an integer number (563637365730).

Almost surely, 2^{12011021112120} is an apocalyptic number.

12011021112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011021112120 is an abundant number, since it is smaller than the sum of its proper divisors (24061770294600).

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

12011021112120 is a wasteful number, since it uses less digits than its factorization.

12011021112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110355764 (or 110355760 counting only the distinct ones).

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

Adding to 12011021112120 its reverse (2121112011021), we get a palindrome (14132133123141).

The spelling of 12011021112120 in words is "twelve trillion, eleven billion, twenty-one million, one hundred twelve thousand, one hundred twenty".