417871171221 has 16 divisors (see below), whose sum is σ = 637053272064. Its totient is φ = 238672075824.

The previous prime is 417871171219. The next prime is 417871171253. The reversal of 417871171221 is 122171178714.

It is not a de Polignac number, because 417871171221 - 2¹ = 417871171219 is a prime.

It is a super-2 number, since 2×417871171221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417871172221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4597701 + ... + 4687706.

It is an arithmetic number, because the mean of its divisors is an integer number (39815829504).

Almost surely, 2^417871171221 is an apocalyptic number.

It is an amenable number.

417871171221 is a deficient number, since it is larger than the sum of its proper divisors (219182100843).

417871171221 is a wasteful number, since it uses less digits than its factorization.

417871171221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287560.

The product of its digits is 43904, while the sum is 42.

The spelling of 417871171221 in words is "four hundred seventeen billion, eight hundred seventy-one million, one hundred seventy-one thousand, two hundred twenty-one".