12221220220112 has 40 divisors (see below), whose sum is σ = 25240361596800. Its totient is φ = 5715720571392.

The previous prime is 12221220220109. The next prime is 12221220220127. The reversal of 12221220220112 is 21102202212221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254415113 + ... + 254463144.

It is an arithmetic number, because the mean of its divisors is an integer number (631009039920).

Almost surely, 2^{12221220220112} is an apocalyptic number.

It is an amenable number.

12221220220112 is an abundant number, since it is smaller than the sum of its proper divisors (13019141376688).

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

12221220220112 is a wasteful number, since it uses less digits than its factorization.

12221220220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508878363 (or 508878357 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12221220220112 its reverse (21102202212221), we get a palindrome (33323422432333).

The spelling of 12221220220112 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty thousand, one hundred twelve".