201002221171 has 2 divisors, whose sum is σ = 201002221172. Its totient is φ = 201002221170.

The previous prime is 201002221109. The next prime is 201002221181. The reversal of 201002221171 is 171122200102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201002221171 - 2⁹ = 201002220659 is a prime.

It is a super-2 number, since 2×201002221171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201002221181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100501110585 + 100501110586.

It is an arithmetic number, because the mean of its divisors is an integer number (100501110586).

Almost surely, 2^201002221171 is an apocalyptic number.

201002221171 is a deficient number, since it is larger than the sum of its proper divisors (1).

201002221171 is an equidigital number, since it uses as much as digits as its factorization.

201002221171 is an odious number, because the sum of its binary digits is odd.

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

Adding to 201002221171 its reverse (171122200102), we get a palindrome (372124421273).

The spelling of 201002221171 in words is "two hundred one billion, two million, two hundred twenty-one thousand, one hundred seventy-one".