22376868921 has 45 divisors (see below), whose sum is σ = 36766598869. Its totient is φ = 13552763400.

The previous prime is 22376868907. The next prime is 22376868967. The reversal of 22376868921 is 12986867322.

The square root of 22376868921 is 149589.

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

It is not a de Polignac number, because 22376868921 - 2¹¹ = 22376866873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22376868721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 14808556 + ... + 14810066.

Almost surely, 2^22376868921 is an apocalyptic number.

22376868921 is the 149589-th square number.

22376868921 is the 74795-th centered octagonal number.

It is an amenable number.

22376868921 is a deficient number, since it is larger than the sum of its proper divisors (14389729948).

22376868921 is an frugal number, since it uses more digits than its factorization.

22376868921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056 (or 1525 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 22376868921 in words is "twenty-two billion, three hundred seventy-six million, eight hundred sixty-eight thousand, nine hundred twenty-one".