20001022001017 has 2 divisors, whose sum is σ = 20001022001018. Its totient is φ = 20001022001016.

The previous prime is 20001022000937. The next prime is 20001022001027. The reversal of 20001022001017 is 71010022010002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14820736752441 + 5180285248576 = 3849771^2 + 2276024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001022001017 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001022001027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000511000508 + 10000511000509.

It is an arithmetic number, because the mean of its divisors is an integer number (10000511000509).

Almost surely, 2^{20001022001017} is an apocalyptic number.

It is an amenable number.

20001022001017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001022001017 is an equidigital number, since it uses as much as digits as its factorization.

20001022001017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 20001022001017 its reverse (71010022010002), we get a palindrome (91011044011019).

The spelling of 20001022001017 in words is "twenty trillion, one billion, twenty-two million, one thousand, seventeen".