22974695221 has 4 divisors (see below), whose sum is σ = 22975242444. Its totient is φ = 22974148000.

The previous prime is 22974695213. The next prime is 22974695257. The reversal of 22974695221 is 12259647922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22354436196 + 620259025 = 149514^2 + 24905^2 .

It is a cyclic number.

It is not a de Polignac number, because 22974695221 - 2³ = 22974695213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22974695021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204880 + ... + 296521.

It is an arithmetic number, because the mean of its divisors is an integer number (5743810611).

Almost surely, 2^22974695221 is an apocalyptic number.

It is an amenable number.

22974695221 is a deficient number, since it is larger than the sum of its proper divisors (547223).

22974695221 is an equidigital number, since it uses as much as digits as its factorization.

22974695221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547222.

The product of its digits is 1088640, while the sum is 49.

The spelling of 22974695221 in words is "twenty-two billion, nine hundred seventy-four million, six hundred ninety-five thousand, two hundred twenty-one".