22231122131 has 16 divisors (see below), whose sum is σ = 23199310848. Its totient is φ = 21285633600.

The previous prime is 22231122119. The next prime is 22231122149. The reversal of 22231122131 is 13122113222.

It is a cyclic number.

It is not a de Polignac number, because 22231122131 - 2¹⁴ = 22231105747 is a prime.

It is a super-2 number, since 2×22231122131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22231127131) 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, 729506 + ... + 759368.

It is an arithmetic number, because the mean of its divisors is an integer number (1449956928).

Almost surely, 2^22231122131 is an apocalyptic number.

22231122131 is a deficient number, since it is larger than the sum of its proper divisors (968188717).

22231122131 is a wasteful number, since it uses less digits than its factorization.

22231122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30242.

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

Adding to 22231122131 its reverse (13122113222), we get a palindrome (35353235353).

It can be divided in two parts, 222311 and 22131, that added together give a palindrome (244442).

The spelling of 22231122131 in words is "twenty-two billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred thirty-one".