20002202220017 has 2 divisors, whose sum is σ = 20002202220018. Its totient is φ = 20002202220016.

The previous prime is 20002202219983. The next prime is 20002202220031. The reversal of 20002202220017 is 71002220220002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12330498813361 + 7671703406656 = 3511481^2 + 2769784^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002202220017 - 2⁶ = 20002202219953 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002202220317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001101110008 + 10001101110009.

It is an arithmetic number, because the mean of its divisors is an integer number (10001101110009).

Almost surely, 2^{20002202220017} is an apocalyptic number.

It is an amenable number.

20002202220017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002202220017 is an equidigital number, since it uses as much as digits as its factorization.

20002202220017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

Adding to 20002202220017 its reverse (71002220220002), we get a palindrome (91004422440019).

The spelling of 20002202220017 in words is "twenty trillion, two billion, two hundred two million, two hundred twenty thousand, seventeen".