22007318131 has 16 divisors (see below), whose sum is σ = 22896720000. Its totient is φ = 21126905856.

The previous prime is 22007318129. The next prime is 22007318143. The reversal of 22007318131 is 13181370022.

It is a cyclic number.

It is not a de Polignac number, because 22007318131 - 2¹ = 22007318129 is a prime.

It is a super-2 number, since 2×22007318131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22007318131.

It is not an unprimeable number, because it can be changed into a prime (22007310131) 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, 5327875 + ... + 5332003.

It is an arithmetic number, because the mean of its divisors is an integer number (1431045000).

Almost surely, 2^22007318131 is an apocalyptic number.

22007318131 is a deficient number, since it is larger than the sum of its proper divisors (889401869).

22007318131 is a wasteful number, since it uses less digits than its factorization.

22007318131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166.

The product of its (nonzero) digits is 2016, while the sum is 28.

Adding to 22007318131 its reverse (13181370022), we get a palindrome (35188688153).

The spelling of 22007318131 in words is "twenty-two billion, seven million, three hundred eighteen thousand, one hundred thirty-one".