100201021171 has 2 divisors, whose sum is σ = 100201021172. Its totient is φ = 100201021170.

The previous prime is 100201021157. The next prime is 100201021181. The reversal of 100201021171 is 171120102001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100201021171 - 2¹¹ = 100201019123 is a prime.

It is a super-2 number, since 2×100201021171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100201021181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100510585 + 50100510586.

It is an arithmetic number, because the mean of its divisors is an integer number (50100510586).

Almost surely, 2^100201021171 is an apocalyptic number.

100201021171 is a deficient number, since it is larger than the sum of its proper divisors (1).

100201021171 is an equidigital number, since it uses as much as digits as its factorization.

100201021171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 100201021171 its reverse (171120102001), we get a palindrome (271321123172).

The spelling of 100201021171 in words is "one hundred billion, two hundred one million, twenty-one thousand, one hundred seventy-one".