222212112222017 has 2 divisors, whose sum is σ = 222212112222018. Its totient is φ = 222212112222016.

The previous prime is 222212112221989. The next prime is 222212112222059. The reversal of 222212112222017 is 710222211212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210649113227536 + 11562998994481 = 14513756^2 + 3400441^2 .

It is a cyclic number.

It is not a de Polignac number, because 222212112222017 - 2¹⁰ = 222212112220993 is a prime.

It is not a weakly prime, because it can be changed into another prime (222212112222077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106056111008 + 111106056111009.

It is an arithmetic number, because the mean of its divisors is an integer number (111106056111009).

Almost surely, 2^{222212112222017} is an apocalyptic number.

It is an amenable number.

222212112222017 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212112222017 is an equidigital number, since it uses as much as digits as its factorization.

222212112222017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

Adding to 222212112222017 its reverse (710222211212222), we get a palindrome (932434323434239).

The spelling of 222212112222017 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, seventeen".