22401321131 has 24 divisors (see below), whose sum is σ = 26580144240. Its totient is φ = 18818860032.

The previous prime is 22401321101. The next prime is 22401321139. The reversal of 22401321131 is 13112310422.

It is not a de Polignac number, because 22401321131 - 2¹⁴ = 22401304747 is a prime.

It is a super-2 number, since 2×22401321131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22401321139) 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 23 ways as a sum of consecutive naturals, for example, 962771 + ... + 985763.

It is an arithmetic number, because the mean of its divisors is an integer number (1107506010).

Almost surely, 2^22401321131 is an apocalyptic number.

22401321131 is a deficient number, since it is larger than the sum of its proper divisors (4178823109).

22401321131 is a wasteful number, since it uses less digits than its factorization.

22401321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23403 (or 23396 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22401321131 its reverse (13112310422), we get a palindrome (35513631553).

The spelling of 22401321131 in words is "twenty-two billion, four hundred one million, three hundred twenty-one thousand, one hundred thirty-one".