222313291 has 2 divisors, whose sum is σ = 222313292. Its totient is φ = 222313290.

The previous prime is 222313253. The next prime is 222313339. The reversal of 222313291 is 192313222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222313291 - 2⁷ = 222313163 is a prime.

It is not a weakly prime, because it can be changed into another prime (222313241) 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 as a sum of consecutive naturals, namely, 111156645 + 111156646.

It is an arithmetic number, because the mean of its divisors is an integer number (111156646).

Almost surely, 2^222313291 is an apocalyptic number.

222313291 is a deficient number, since it is larger than the sum of its proper divisors (1).

222313291 is an equidigital number, since it uses as much as digits as its factorization.

222313291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 222313291 is about 14910.1740767839. The cubic root of 222313291 is about 605.7895944529.

The spelling of 222313291 in words is "two hundred twenty-two million, three hundred thirteen thousand, two hundred ninety-one".