12220211211312 has 40 divisors (see below), whose sum is σ = 33997254269104. Its totient is φ = 3760064987904.

The previous prime is 12220211211293. The next prime is 12220211211343. The reversal of 12220211211312 is 21311211202221.

It is a super-2 number, since 2×12220211211312² (a number of 27 digits) contains 22 as substring.

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, 9791835283 + ... + 9791836530.

Almost surely, 2^{12220211211312} is an apocalyptic number.

12220211211312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220211211312 is an abundant number, since it is smaller than the sum of its proper divisors (21777043057792).

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

12220211211312 is a wasteful number, since it uses less digits than its factorization.

12220211211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19583671837 (or 19583671831 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12220211211312 its reverse (21311211202221), we get a palindrome (33531422413533).

Subtracting 12220211211312 from its reverse (21311211202221), we obtain a palindrome (9090999990909).

The spelling of 12220211211312 in words is "twelve trillion, two hundred twenty billion, two hundred eleven million, two hundred eleven thousand, three hundred twelve".