12021011112120 has 128 divisors (see below), whose sum is σ = 36114328535040. Its totient is φ = 3201045534720.

The previous prime is 12021011112113. The next prime is 12021011112179. The reversal of 12021011112120 is 2121111012021.

It is a happy number.

12021011112120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12021011112120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419376909 + ... + 419405571.

It is an arithmetic number, because the mean of its divisors is an integer number (282143191680).

Almost surely, 2^{12021011112120} is an apocalyptic number.

12021011112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021011112120 is an abundant number, since it is smaller than the sum of its proper divisors (24093317422920).

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

12021011112120 is a wasteful number, since it uses less digits than its factorization.

12021011112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33525 (or 33521 counting only the distinct ones).

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

Adding to 12021011112120 its reverse (2121111012021), we get a palindrome (14142122124141).

The spelling of 12021011112120 in words is "twelve trillion, twenty-one billion, eleven million, one hundred twelve thousand, one hundred twenty".