22225661008 has 120 divisors (see below), whose sum is σ = 48472344000. Its totient is φ = 9836467200.

The previous prime is 22225660973. The next prime is 22225661041. The reversal of 22225661008 is 80016652222.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14826243 + ... + 14827741.

It is an arithmetic number, because the mean of its divisors is an integer number (403936200).

Almost surely, 2^22225661008 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 22225661008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24236172000).

22225661008 is an abundant number, since it is smaller than the sum of its proper divisors (26246682992).

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

22225661008 is a wasteful number, since it uses less digits than its factorization.

22225661008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 22225661008 in words is "twenty-two billion, two hundred twenty-five million, six hundred sixty-one thousand, eight".