2101210010171 has 2 divisors, whose sum is σ = 2101210010172. Its totient is φ = 2101210010170.

The previous prime is 2101210010143. The next prime is 2101210010209. The reversal of 2101210010171 is 1710100121012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101210010171 - 2³⁸ = 1826332103227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101210010111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050605005085 + 1050605005086.

It is an arithmetic number, because the mean of its divisors is an integer number (1050605005086).

Almost surely, 2^{2101210010171} is an apocalyptic number.

2101210010171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101210010171 is an equidigital number, since it uses as much as digits as its factorization.

2101210010171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 2101210010171 its reverse (1710100121012), we get a palindrome (3811310131183).

The spelling of 2101210010171 in words is "two trillion, one hundred one billion, two hundred ten million, ten thousand, one hundred seventy-one".