2120200171 has 2 divisors, whose sum is σ = 2120200172. Its totient is φ = 2120200170.

The previous prime is 2120200163. The next prime is 2120200213. The reversal of 2120200171 is 1710020212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120200171 - 2³ = 2120200163 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120200111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060100085 + 1060100086.

It is an arithmetic number, because the mean of its divisors is an integer number (1060100086).

Almost surely, 2^2120200171 is an apocalyptic number.

2120200171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120200171 is an equidigital number, since it uses as much as digits as its factorization.

2120200171 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 16.

The square root of 2120200171 is about 46045.6313997322. The cubic root of 2120200171 is about 1284.6720882016.

Adding to 2120200171 its reverse (1710020212), we get a palindrome (3830220383).

The spelling of 2120200171 in words is "two billion, one hundred twenty million, two hundred thousand, one hundred seventy-one".