222123112331 has 2 divisors, whose sum is σ = 222123112332. Its totient is φ = 222123112330.

The previous prime is 222123112303. The next prime is 222123112369. The reversal of 222123112331 is 133211321222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222123112331 is a prime.

It is a super-2 number, since 2×222123112331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222123112297 and 222123112306.

It is not a weakly prime, because it can be changed into another prime (222123112231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061556165 + 111061556166.

It is an arithmetic number, because the mean of its divisors is an integer number (111061556166).

Almost surely, 2^222123112331 is an apocalyptic number.

222123112331 is a deficient number, since it is larger than the sum of its proper divisors (1).

222123112331 is an equidigital number, since it uses as much as digits as its factorization.

222123112331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

Adding to 222123112331 its reverse (133211321222), we get a palindrome (355334433553).

The spelling of 222123112331 in words is "two hundred twenty-two billion, one hundred twenty-three million, one hundred twelve thousand, three hundred thirty-one".