12220112121020 has 12 divisors (see below), whose sum is σ = 25662235454184. Its totient is φ = 4888044848400.

The previous prime is 12220112120999. The next prime is 12220112121071. The reversal of 12220112121020 is 2012121102221.

It is a super-2 number, since 2×12220112121020² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12220112121020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305502803006 + ... + 305502803045.

It is an arithmetic number, because the mean of its divisors is an integer number (2138519621182).

Almost surely, 2^{12220112121020} is an apocalyptic number.

12220112121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220112121020 is an abundant number, since it is smaller than the sum of its proper divisors (13442123333164).

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

12220112121020 is a wasteful number, since it uses less digits than its factorization.

12220112121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611005606060 (or 611005606058 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12220112121020 its reverse (2012121102221), we get a palindrome (14232233223241).

The spelling of 12220112121020 in words is "twelve trillion, two hundred twenty billion, one hundred twelve million, one hundred twenty-one thousand, twenty".