12221010021120 has 144 divisors (see below), whose sum is σ = 39279456837600. Its totient is φ = 3238178291712.

The previous prime is 12221010021091. The next prime is 12221010021127. The reversal of 12221010021120 is 2112001012221.

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 12221010021120.

It is not an unprimeable number, because it can be changed into a prime (12221010021127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9532645 + ... + 10738404.

Almost surely, 2^{12221010021120} is an apocalyptic number.

12221010021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221010021120 is an abundant number, since it is smaller than the sum of its proper divisors (27058446816480).

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

12221010021120 is a wasteful number, since it uses less digits than its factorization.

12221010021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20271230 (or 20271216 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12221010021120 its reverse (2112001012221), we get a palindrome (14333011033341).

The spelling of 12221010021120 in words is "twelve trillion, two hundred twenty-one billion, ten million, twenty-one thousand, one hundred twenty".