222122312017 has 2 divisors, whose sum is σ = 222122312018. Its totient is φ = 222122312016.

The previous prime is 222122311951. The next prime is 222122312029. The reversal of 222122312017 is 710213221222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139337211841 + 82785100176 = 373279^2 + 287724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222122312017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222122311982 and 222122312000.

It is not a weakly prime, because it can be changed into another prime (222122312317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061156008 + 111061156009.

It is an arithmetic number, because the mean of its divisors is an integer number (111061156009).

Almost surely, 2^222122312017 is an apocalyptic number.

It is an amenable number.

222122312017 is a deficient number, since it is larger than the sum of its proper divisors (1).

222122312017 is an equidigital number, since it uses as much as digits as its factorization.

222122312017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 222122312017 its reverse (710213221222), we get a palindrome (932335533239).

The spelling of 222122312017 in words is "two hundred twenty-two billion, one hundred twenty-two million, three hundred twelve thousand, seventeen".