202102010222171 has 2 divisors, whose sum is σ = 202102010222172. Its totient is φ = 202102010222170.

The previous prime is 202102010222153. The next prime is 202102010222209. The reversal of 202102010222171 is 171222010201202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202102010222171 - 2²⁶ = 202101943113307 is a prime.

It is a super-2 number, since 2×202102010222171² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202102010222071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101051005111085 + 101051005111086.

It is an arithmetic number, because the mean of its divisors is an integer number (101051005111086).

Almost surely, 2^{202102010222171} is an apocalyptic number.

202102010222171 is a deficient number, since it is larger than the sum of its proper divisors (1).

202102010222171 is an equidigital number, since it uses as much as digits as its factorization.

202102010222171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 202102010222171 its reverse (171222010201202), we get a palindrome (373324020423373).

The spelling of 202102010222171 in words is "two hundred two trillion, one hundred two billion, ten million, two hundred twenty-two thousand, one hundred seventy-one".