222123031131 has 16 divisors (see below), whose sum is σ = 312044983040. Its totient is φ = 140156218080.

The previous prime is 222123031099. The next prime is 222123031157. The reversal of 222123031131 is 131130321222.

It is not a de Polignac number, because 222123031131 - 2⁵ = 222123031099 is a prime.

It is a super-2 number, since 2×222123031131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222123031098 and 222123031107.

It is not an unprimeable number, because it can be changed into a prime (222123031331) 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, 1772380 + ... + 1893561.

It is an arithmetic number, because the mean of its divisors is an integer number (19502811440).

Almost surely, 2^222123031131 is an apocalyptic number.

222123031131 is a deficient number, since it is larger than the sum of its proper divisors (89921951909).

222123031131 is a wasteful number, since it uses less digits than its factorization.

222123031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667026.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 222123031131 its reverse (131130321222), we get a palindrome (353253352353).

The spelling of 222123031131 in words is "two hundred twenty-two billion, one hundred twenty-three million, thirty-one thousand, one hundred thirty-one".