222404638934017 has 2 divisors, whose sum is σ = 222404638934018. Its totient is φ = 222404638934016.

The previous prime is 222404638933969. The next prime is 222404638934053. The reversal of 222404638934017 is 710439836404222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199361720441601 + 23042918492416 = 14119551^2 + 4800304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222404638934017 is a prime.

It is not a weakly prime, because it can be changed into another prime (222404638934057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111202319467008 + 111202319467009.

It is an arithmetic number, because the mean of its divisors is an integer number (111202319467009).

Almost surely, 2^{222404638934017} is an apocalyptic number.

It is an amenable number.

222404638934017 is a deficient number, since it is larger than the sum of its proper divisors (1).

222404638934017 is an equidigital number, since it uses as much as digits as its factorization.

222404638934017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 55.

The spelling of 222404638934017 in words is "two hundred twenty-two trillion, four hundred four billion, six hundred thirty-eight million, nine hundred thirty-four thousand, seventeen".