222123112291 has 2 divisors, whose sum is σ = 222123112292. Its totient is φ = 222123112290.

The previous prime is 222123112247. The next prime is 222123112303. The reversal of 222123112291 is 192211321222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222123112291 - 2⁷ = 222123112163 is a prime.

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, 111061556145 + 111061556146.

It is an arithmetic number, because the mean of its divisors is an integer number (111061556146).

Almost surely, 2^222123112291 is an apocalyptic number.

222123112291 is a deficient number, since it is larger than the sum of its proper divisors (1).

222123112291 is an equidigital number, since it uses as much as digits as its factorization.

222123112291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The spelling of 222123112291 in words is "two hundred twenty-two billion, one hundred twenty-three million, one hundred twelve thousand, two hundred ninety-one".