22555131321 has 16 divisors (see below), whose sum is σ = 31173946560. Its totient is φ = 14488649280.

The previous prime is 22555131283. The next prime is 22555131329. The reversal of 22555131321 is 12313155522.

It is not a de Polignac number, because 22555131321 - 2¹⁷ = 22555000249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22555131329) 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 15 ways as a sum of consecutive naturals, for example, 221290 + ... + 306723.

It is an arithmetic number, because the mean of its divisors is an integer number (1948371660).

Almost surely, 2^22555131321 is an apocalyptic number.

It is an amenable number.

22555131321 is a deficient number, since it is larger than the sum of its proper divisors (8618815239).

22555131321 is a wasteful number, since it uses less digits than its factorization.

22555131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528536.

The product of its digits is 9000, while the sum is 30.

Adding to 22555131321 its reverse (12313155522), we get a palindrome (34868286843).

The spelling of 22555131321 in words is "twenty-two billion, five hundred fifty-five million, one hundred thirty-one thousand, three hundred twenty-one".