22261325212 has 48 divisors (see below), whose sum is σ = 45474851520. Its totient is φ = 9337416192.

The previous prime is 22261325209. The next prime is 22261325227. The reversal of 22261325212 is 21252316222.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588618 + ... + 625294.

It is an arithmetic number, because the mean of its divisors is an integer number (947392740).

Almost surely, 2^22261325212 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 22261325212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22737425760).

22261325212 is an abundant number, since it is smaller than the sum of its proper divisors (23213526308).

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

22261325212 is a wasteful number, since it uses less digits than its factorization.

22261325212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37150 (or 37148 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The spelling of 22261325212 in words is "twenty-two billion, two hundred sixty-one million, three hundred twenty-five thousand, two hundred twelve".