12000221022120 has 64 divisors (see below), whose sum is σ = 36009460206720. Its totient is φ = 3199276971264.

The previous prime is 12000221022091. The next prime is 12000221022149. The reversal of 12000221022120 is 2122012200021.

It is an interprime number because it is at equal distance from previous prime (12000221022091) and next prime (12000221022149).

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 12000221022120.

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, 11725044 + ... + 12707363.

It is an arithmetic number, because the mean of its divisors is an integer number (562647815730).

Almost surely, 2^{12000221022120} is an apocalyptic number.

12000221022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000221022120 is an abundant number, since it is smaller than the sum of its proper divisors (24009239184600).

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

12000221022120 is a wasteful number, since it uses less digits than its factorization.

12000221022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24436514 (or 24436510 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12000221022120 its reverse (2122012200021), we get a palindrome (14122233222141).

The spelling of 12000221022120 in words is "twelve trillion, two hundred twenty-one million, twenty-two thousand, one hundred twenty".