222657233 has 2 divisors, whose sum is σ = 222657234. Its totient is φ = 222657232.

The previous prime is 222657229. The next prime is 222657251. The reversal of 222657233 is 332756222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151979584 + 70677649 = 12328^2 + 8407^2 .

It is a cyclic number.

It is not a de Polignac number, because 222657233 - 2² = 222657229 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222657233.

It is not a weakly prime, because it can be changed into another prime (222657203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111328616 + 111328617.

It is an arithmetic number, because the mean of its divisors is an integer number (111328617).

Almost surely, 2^222657233 is an apocalyptic number.

It is an amenable number.

222657233 is a deficient number, since it is larger than the sum of its proper divisors (1).

222657233 is an equidigital number, since it uses as much as digits as its factorization.

222657233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 32.

The square root of 222657233 is about 14921.7034215266. The cubic root of 222657233 is about 606.1018401824.

The spelling of 222657233 in words is "two hundred twenty-two million, six hundred fifty-seven thousand, two hundred thirty-three".