222212220222017 has 2 divisors, whose sum is σ = 222212220222018. Its totient is φ = 222212220222016.

The previous prime is 222212220221987. The next prime is 222212220222043. The reversal of 222212220222017 is 710222022212222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173958135683761 + 48254084538256 = 13189319^2 + 6946516^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222212220222017 is a prime.

It is not a weakly prime, because it can be changed into another prime (222212220252017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106110111008 + 111106110111009.

It is an arithmetic number, because the mean of its divisors is an integer number (111106110111009).

Almost surely, 2^{222212220222017} is an apocalyptic number.

It is an amenable number.

222212220222017 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212220222017 is an equidigital number, since it uses as much as digits as its factorization.

222212220222017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 29.

Adding to 222212220222017 its reverse (710222022212222), we get a palindrome (932434242434239).

The spelling of 222212220222017 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twenty million, two hundred twenty-two thousand, seventeen".