22213110312012 has 24 divisors (see below), whose sum is σ = 51831475451056. Its totient is φ = 7404243715008.

The previous prime is 22213110312011. The next prime is 22213110312013. The reversal of 22213110312012 is 21021301131222.

It is an interprime number because it is at equal distance from previous prime (22213110312011) and next prime (22213110312013).

It is a super-2 number, since 2×22213110312012² (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 22213110312012.

It is not an unprimeable number, because it can be changed into a prime (22213110312011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15064963 + ... + 16473594.

Almost surely, 2^{22213110312012} is an apocalyptic number.

It is an amenable number.

22213110312012 is an abundant number, since it is smaller than the sum of its proper divisors (29618365139044).

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

22213110312012 is a wasteful number, since it uses less digits than its factorization.

22213110312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31597257 (or 31597255 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 22213110312012 its reverse (21021301131222), we get a palindrome (43234411443234).

The spelling of 22213110312012 in words is "twenty-two trillion, two hundred thirteen billion, one hundred ten million, three hundred twelve thousand, twelve".