22182740920 has 64 divisors (see below), whose sum is σ = 53128548000. Its totient is φ = 8311615488.

The previous prime is 22182740911. The next prime is 22182740927. The reversal of 22182740920 is 2904728122.

It is a self number, because there is not a number n which added to its sum of digits gives 22182740920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22182740927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96337 + ... + 231616.

Almost surely, 2^22182740920 is an apocalyptic number.

22182740920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22182740920 is an abundant number, since it is smaller than the sum of its proper divisors (30945807080).

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

22182740920 is a wasteful number, since it uses less digits than its factorization.

22182740920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328072 (or 328068 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 22182740920 in words is "twenty-two billion, one hundred eighty-two million, seven hundred forty thousand, nine hundred twenty".