1002210202171 has 2 divisors, whose sum is σ = 1002210202172. Its totient is φ = 1002210202170.

The previous prime is 1002210202051. The next prime is 1002210202187. The reversal of 1002210202171 is 1712020122001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002210202171 - 2²⁵ = 1002176647739 is a prime.

It is a super-2 number, since 2×1002210202171² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002210202571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501105101085 + 501105101086.

It is an arithmetic number, because the mean of its divisors is an integer number (501105101086).

Almost surely, 2^{1002210202171} is an apocalyptic number.

1002210202171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002210202171 is an equidigital number, since it uses as much as digits as its factorization.

1002210202171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 1002210202171 its reverse (1712020122001), we get a palindrome (2714230324172).

The spelling of 1002210202171 in words is "one trillion, two billion, two hundred ten million, two hundred two thousand, one hundred seventy-one".