2002201202171 has 2 divisors, whose sum is σ = 2002201202172. Its totient is φ = 2002201202170.

The previous prime is 2002201202159. The next prime is 2002201202207. The reversal of 2002201202171 is 1712021022002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002201202171 - 2³⁸ = 1727323295227 is a prime.

It is a super-2 number, since 2×2002201202171² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2002201202671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001100601085 + 1001100601086.

It is an arithmetic number, because the mean of its divisors is an integer number (1001100601086).

Almost surely, 2^{2002201202171} is an apocalyptic number.

2002201202171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002201202171 is an equidigital number, since it uses as much as digits as its factorization.

2002201202171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 2002201202171 its reverse (1712021022002), we get a palindrome (3714222224173).

The spelling of 2002201202171 in words is "two trillion, two billion, two hundred one million, two hundred two thousand, one hundred seventy-one".