200122125817 has 2 divisors, whose sum is σ = 200122125818. Its totient is φ = 200122125816.

The previous prime is 200122125809. The next prime is 200122125821. The reversal of 200122125817 is 718521221002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172012585536 + 28109540281 = 414744^2 + 167659^2 .

It is a cyclic number.

It is not a de Polignac number, because 200122125817 - 2³ = 200122125809 is a prime.

It is not a weakly prime, because it can be changed into another prime (200122125877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061062908 + 100061062909.

It is an arithmetic number, because the mean of its divisors is an integer number (100061062909).

Almost surely, 2^200122125817 is an apocalyptic number.

It is an amenable number.

200122125817 is a deficient number, since it is larger than the sum of its proper divisors (1).

200122125817 is an equidigital number, since it uses as much as digits as its factorization.

200122125817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

Adding to 200122125817 its reverse (718521221002), we get a palindrome (918643346819).

The spelling of 200122125817 in words is "two hundred billion, one hundred twenty-two million, one hundred twenty-five thousand, eight hundred seventeen".