201000122110171 has 2 divisors, whose sum is σ = 201000122110172. Its totient is φ = 201000122110170.

The previous prime is 201000122110129. The next prime is 201000122110181. The reversal of 201000122110171 is 171011221000102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201000122110171 - 2⁹ = 201000122109659 is a prime.

It is not a weakly prime, because it can be changed into another prime (201000122110181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500061055085 + 100500061055086.

It is an arithmetic number, because the mean of its divisors is an integer number (100500061055086).

Almost surely, 2^{201000122110171} is an apocalyptic number.

201000122110171 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000122110171 is an equidigital number, since it uses as much as digits as its factorization.

201000122110171 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 19.

Adding to 201000122110171 its reverse (171011221000102), we get a palindrome (372011343110273).

The spelling of 201000122110171 in words is "two hundred one trillion, one hundred twenty-two million, one hundred ten thousand, one hundred seventy-one".