22007231280 has 160 divisors (see below), whose sum is σ = 77087923200. Its totient is φ = 5769093888.

The previous prime is 22007231249. The next prime is 22007231293. The reversal of 22007231280 is 8213270022.

It is a happy number.

22007231280 is a `hidden beast` number, since 2 + 200 + 72 + 312 + 80 = 666.

It is a super-2 number, since 2×22007231280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 41097 + ... + 213783.

It is an arithmetic number, because the mean of its divisors is an integer number (481799520).

Almost surely, 2^22007231280 is an apocalyptic number.

22007231280 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 22007231280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38543961600).

22007231280 is an abundant number, since it is smaller than the sum of its proper divisors (55080691920).

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

22007231280 is a wasteful number, since it uses less digits than its factorization.

22007231280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172768 (or 172756 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 22007231280 in words is "twenty-two billion, seven million, two hundred thirty-one thousand, two hundred eighty".