1002221130217 has 2 divisors, whose sum is σ = 1002221130218. Its totient is φ = 1002221130216.

The previous prime is 1002221130137. The next prime is 1002221130269. The reversal of 1002221130217 is 7120311222001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 963575861161 + 38645269056 = 981619^2 + 196584^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002221130217 - 2²³ = 1002212741609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002221130277) 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, 501110565108 + 501110565109.

It is an arithmetic number, because the mean of its divisors is an integer number (501110565109).

Almost surely, 2^{1002221130217} is an apocalyptic number.

It is an amenable number.

1002221130217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002221130217 is an equidigital number, since it uses as much as digits as its factorization.

1002221130217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 1002221130217 its reverse (7120311222001), we get a palindrome (8122532352218).

The spelling of 1002221130217 in words is "one trillion, two billion, two hundred twenty-one million, one hundred thirty thousand, two hundred seventeen".