12221102012212 has 24 divisors (see below), whose sum is σ = 21640110978752. Its totient is φ = 6038632512000.

The previous prime is 12221102012159. The next prime is 12221102012227. The reversal of 12221102012212 is 21221020112221.

It is a super-3 number, since 3×12221102012212³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12221102012212.

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, 52302114 + ... + 52535257.

Almost surely, 2^{12221102012212} is an apocalyptic number.

It is an amenable number.

12221102012212 is a deficient number, since it is larger than the sum of its proper divisors (9419008966540).

12221102012212 is a wasteful number, since it uses less digits than its factorization.

12221102012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104837719 (or 104837717 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221102012212 its reverse (21221020112221), we get a palindrome (33442122124433).

The spelling of 12221102012212 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, twelve thousand, two hundred twelve".