222312799 has 2 divisors, whose sum is σ = 222312800. Its totient is φ = 222312798.

The previous prime is 222312751. The next prime is 222312821. The reversal of 222312799 is 997213222.

222312799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222312799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222312199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111156399 + 111156400.

It is an arithmetic number, because the mean of its divisors is an integer number (111156400).

Almost surely, 2^222312799 is an apocalyptic number.

222312799 is a deficient number, since it is larger than the sum of its proper divisors (1).

222312799 is an equidigital number, since it uses as much as digits as its factorization.

222312799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 222312799 is about 14910.1575779735. The cubic root of 222312799 is about 605.7891475630.

The spelling of 222312799 in words is "two hundred twenty-two million, three hundred twelve thousand, seven hundred ninety-nine".