100201221017 has 2 divisors, whose sum is σ = 100201221018. Its totient is φ = 100201221016.

The previous prime is 100201221011. The next prime is 100201221179. The reversal of 100201221017 is 710122102001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92336369161 + 7864851856 = 303869^2 + 88684^2 .

It is a cyclic number.

It is not a de Polignac number, because 100201221017 - 2⁶ = 100201220953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100201220986 and 100201221004.

It is not a weakly prime, because it can be changed into another prime (100201221011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100610508 + 50100610509.

It is an arithmetic number, because the mean of its divisors is an integer number (50100610509).

Almost surely, 2^100201221017 is an apocalyptic number.

It is an amenable number.

100201221017 is a deficient number, since it is larger than the sum of its proper divisors (1).

100201221017 is an equidigital number, since it uses as much as digits as its factorization.

100201221017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 100201221017 its reverse (710122102001), we get a palindrome (810323323018).

The spelling of 100201221017 in words is "one hundred billion, two hundred one million, two hundred twenty-one thousand, seventeen".