22231704609 has 15 divisors (see below), whose sum is σ = 33212328897. Its totient is φ = 14820241788.

The previous prime is 22231704571. The next prime is 22231704613. The reversal of 22231704609 is 90640713222.

The square root of 22231704609 is 149103.

It is a perfect power (a square), and thus also a powerful number.

22231704609 is a `hidden beast` number, since 2 + 2 + 23 + 170 + 460 + 9 = 666.

It is not a de Polignac number, because 22231704609 - 2³³ = 13641770017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22231704109) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1333644 + ... + 1350210.

Almost surely, 2^22231704609 is an apocalyptic number.

22231704609 is the 149103-rd square number.

22231704609 is the 74552-nd centered octagonal number.

It is an amenable number.

22231704609 is a deficient number, since it is larger than the sum of its proper divisors (10980624288).

22231704609 is an frugal number, since it uses more digits than its factorization.

22231704609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33146 (or 16570 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

Multiplying 22231704609 by its sum of digits (36), we get a square (800341365924 = 894618²).

The spelling of 22231704609 in words is "twenty-two billion, two hundred thirty-one million, seven hundred four thousand, six hundred nine".