22621137 has 16 divisors (see below), whose sum is σ = 37604352. Its totient is φ = 11751120.

The previous prime is 22621127. The next prime is 22621141. The reversal of 22621137 is 73112622.

It is not a de Polignac number, because 22621137 - 2¹¹ = 22619089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22621117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48733 + ... + 49194.

It is an arithmetic number, because the mean of its divisors is an integer number (2350272).

Almost surely, 2^22621137 is an apocalyptic number.

It is an amenable number.

22621137 is a deficient number, since it is larger than the sum of its proper divisors (14983215).

22621137 is a wasteful number, since it uses less digits than its factorization.

22621137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97948.

The product of its digits is 1008, while the sum is 24.

The square root of 22621137 is about 4756.1683107308. The cubic root of 22621137 is about 282.8165433953.

Adding to 22621137 its reverse (73112622), we get a palindrome (95733759).

The spelling of 22621137 in words is "twenty-two million, six hundred twenty-one thousand, one hundred thirty-seven".