1001222220017 has 2 divisors, whose sum is σ = 1001222220018. Its totient is φ = 1001222220016.

The previous prime is 1001222220001. The next prime is 1001222220067. The reversal of 1001222220017 is 7100222221001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627832784881 + 373389435136 = 792359^2 + 611056^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001222220017 - 2⁴ = 1001222220001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001222220067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611110008 + 500611110009.

It is an arithmetic number, because the mean of its divisors is an integer number (500611110009).

Almost surely, 2^{1001222220017} is an apocalyptic number.

It is an amenable number.

1001222220017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001222220017 is an equidigital number, since it uses as much as digits as its factorization.

1001222220017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 1001222220017 its reverse (7100222221001), we get a palindrome (8101444441018).

The spelling of 1001222220017 in words is "one trillion, one billion, two hundred twenty-two million, two hundred twenty thousand, seventeen".