222112201122017 has 2 divisors, whose sum is σ = 222112201122018. Its totient is φ = 222112201122016.

The previous prime is 222112201121989. The next prime is 222112201122037. The reversal of 222112201122017 is 710221102211222.

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., 174073218329761 + 48038982792256 = 13193681^2 + 6931016^2 .

It is a cyclic number.

It is not a de Polignac number, because 222112201122017 - 2¹² = 222112201117921 is a prime.

It is not a weakly prime, because it can be changed into another prime (222112201122037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056100561008 + 111056100561009.

It is an arithmetic number, because the mean of its divisors is an integer number (111056100561009).

Almost surely, 2^{222112201122017} is an apocalyptic number.

It is an amenable number.

222112201122017 is a deficient number, since it is larger than the sum of its proper divisors (1).

222112201122017 is an equidigital number, since it uses as much as digits as its factorization.

222112201122017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 222112201122017 its reverse (710221102211222), we get a palindrome (932333303333239).

The spelling of 222112201122017 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred one million, one hundred twenty-two thousand, seventeen".