22120012211212 has 12 divisors (see below), whose sum is σ = 38711080115176. Its totient is φ = 11059703606880.

The previous prime is 22120012211207. The next prime is 22120012211221. The reversal of 22120012211212 is 21211221002122.

It is a self number, because there is not a number n which added to its sum of digits gives 22120012211212.

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, 75460113 + ... + 75752680.

Almost surely, 2^{22120012211212} is an apocalyptic number.

It is an amenable number.

22120012211212 is a deficient number, since it is larger than the sum of its proper divisors (16591067903964).

22120012211212 is a wasteful number, since it uses less digits than its factorization.

22120012211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151249368 (or 151249366 counting only the distinct ones).

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

Adding to 22120012211212 its reverse (21211221002122), we get a palindrome (43331233213334).

The spelling of 22120012211212 in words is "twenty-two trillion, one hundred twenty billion, twelve million, two hundred eleven thousand, two hundred twelve".