20021232000017 has 2 divisors, whose sum is σ = 20021232000018. Its totient is φ = 20021232000016.

The previous prime is 20021231999849. The next prime is 20021232000031. The reversal of 20021232000017 is 71000023212002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16353685272961 + 3667546727056 = 4043969^2 + 1915084^2 .

It is a cyclic number.

It is not a de Polignac number, because 20021232000017 - 2²⁰ = 20021230951441 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021232000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010616000008 + 10010616000009.

It is an arithmetic number, because the mean of its divisors is an integer number (10010616000009).

Almost surely, 2^{20021232000017} is an apocalyptic number.

It is an amenable number.

20021232000017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021232000017 is an equidigital number, since it uses as much as digits as its factorization.

20021232000017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 20021232000017 its reverse (71000023212002), we get a palindrome (91021255212019).

The spelling of 20021232000017 in words is "twenty trillion, twenty-one billion, two hundred thirty-two million, seventeen", and thus it is an aban number.