200100012100171 has 2 divisors, whose sum is σ = 200100012100172. Its totient is φ = 200100012100170.

The previous prime is 200100012100169. The next prime is 200100012100249. The reversal of 200100012100171 is 171001210001002.

200100012100171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200100012100171 - 2¹ = 200100012100169 is a prime.

It is a super-2 number, since 2×200100012100171² (a number of 29 digits) contains 22 as substring.

Together with 200100012100169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (200100012100141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100050006050085 + 100050006050086.

It is an arithmetic number, because the mean of its divisors is an integer number (100050006050086).

Almost surely, 2^{200100012100171} is an apocalyptic number.

200100012100171 is a deficient number, since it is larger than the sum of its proper divisors (1).

200100012100171 is an equidigital number, since it uses as much as digits as its factorization.

200100012100171 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 200100012100171 its reverse (171001210001002), we get a palindrome (371101222101173).

The spelling of 200100012100171 in words is "two hundred trillion, one hundred billion, twelve million, one hundred thousand, one hundred seventy-one".