22237084920 has 128 divisors (see below), whose sum is σ = 70163159040. Its totient is φ = 5630277120.

The previous prime is 22237084897. The next prime is 22237084921. The reversal of 22237084920 is 2948073222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22237084921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140767 + ... + 253553.

It is an arithmetic number, because the mean of its divisors is an integer number (548149680).

Almost surely, 2^22237084920 is an apocalyptic number.

22237084920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22237084920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35081579520).

22237084920 is an abundant number, since it is smaller than the sum of its proper divisors (47926074120).

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

22237084920 is a wasteful number, since it uses less digits than its factorization.

22237084920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112885 (or 112881 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 22237084920 in words is "twenty-two billion, two hundred thirty-seven million, eighty-four thousand, nine hundred twenty".