22255508912 has 160 divisors (see below), whose sum is σ = 54050540544. Its totient is φ = 8642995200.

The previous prime is 22255508903. The next prime is 22255508921. The reversal of 22255508912 is 21980555222.

It is an interprime number because it is at equal distance from previous prime (22255508903) and next prime (22255508921).

It is a super-2 number, since 2×22255508912² (a number of 21 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 22255508912.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47656103 + ... + 47656569.

Almost surely, 2^22255508912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22255508912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27025270272).

22255508912 is an abundant number, since it is smaller than the sum of its proper divisors (31795031632).

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

22255508912 is a wasteful number, since it uses less digits than its factorization.

22255508912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 22255508912 in words is "twenty-two billion, two hundred fifty-five million, five hundred eight thousand, nine hundred twelve".