202020210012017 has 2 divisors, whose sum is σ = 202020210012018. Its totient is φ = 202020210012016.

The previous prime is 202020210012013. The next prime is 202020210012077. The reversal of 202020210012017 is 710210012020202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188479510118656 + 13540699893361 = 13728784^2 + 3679769^2 .

It is a cyclic number.

It is not a de Polignac number, because 202020210012017 - 2² = 202020210012013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202020210012017.

It is not a weakly prime, because it can be changed into another prime (202020210012011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010105006008 + 101010105006009.

It is an arithmetic number, because the mean of its divisors is an integer number (101010105006009).

Almost surely, 2^{202020210012017} is an apocalyptic number.

It is an amenable number.

202020210012017 is a deficient number, since it is larger than the sum of its proper divisors (1).

202020210012017 is an equidigital number, since it uses as much as digits as its factorization.

202020210012017 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 202020210012017 its reverse (710210012020202), we get a palindrome (912230222032219).

The spelling of 202020210012017 in words is "two hundred two trillion, twenty billion, two hundred ten million, twelve thousand, seventeen".