22565221107 has 16 divisors (see below), whose sum is σ = 35346920448. Its totient is φ = 12623899680.

The previous prime is 22565221097. The next prime is 22565221121. The reversal of 22565221107 is 70112256522.

It is not a de Polignac number, because 22565221107 - 2²³ = 22556832499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (22565221307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26299363 + ... + 26300220.

It is an arithmetic number, because the mean of its divisors is an integer number (2209182528).

Almost surely, 2^22565221107 is an apocalyptic number.

22565221107 is a deficient number, since it is larger than the sum of its proper divisors (12781699341).

22565221107 is a wasteful number, since it uses less digits than its factorization.

22565221107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52599610.

The product of its (nonzero) digits is 16800, while the sum is 33.

Adding to 22565221107 its reverse (70112256522), we get a palindrome (92677477629).

The spelling of 22565221107 in words is "twenty-two billion, five hundred sixty-five million, two hundred twenty-one thousand, one hundred seven".