22509911272 has 16 divisors (see below), whose sum is σ = 42207675300. Its totient is φ = 11254531200.

The previous prime is 22509911257. The next prime is 22509911317. The reversal of 22509911272 is 27211990522.

It can be written as a sum of positive squares in 2 ways, for example, as 16859983716 + 5649927556 = 129846^2 + 75166^2 .

It is a super-2 number, since 2×22509911272² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389022 + ... + 443122.

Almost surely, 2^22509911272 is an apocalyptic number.

It is an amenable number.

22509911272 is a deficient number, since it is larger than the sum of its proper divisors (19697764028).

22509911272 is a wasteful number, since it uses less digits than its factorization.

22509911272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106116 (or 106112 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 22509911272 in words is "twenty-two billion, five hundred nine million, nine hundred eleven thousand, two hundred seventy-two".