22122111102112 has 48 divisors (see below), whose sum is σ = 49777268409792. Its totient is φ = 9480425057280.

The previous prime is 22122111102061. The next prime is 22122111102121. The reversal of 22122111102112 is 21120111122122.

It is a happy number.

It is a super-2 number, since 2×22122111102112² (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 22122111102112.

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, 1956312 + ... + 6933352.

It is an arithmetic number, because the mean of its divisors is an integer number (1037026425204).

Almost surely, 2^{22122111102112} is an apocalyptic number.

It is an amenable number.

22122111102112 is an abundant number, since it is smaller than the sum of its proper divisors (27655157307680).

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

22122111102112 is a wasteful number, since it uses less digits than its factorization.

22122111102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996901 (or 4996893 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22122111102112 its reverse (21120111122122), we get a palindrome (43242222224234).

The spelling of 22122111102112 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred eleven million, one hundred two thousand, one hundred twelve".