220008171 has 8 divisors (see below), whose sum is σ = 293449024. Its totient is φ = 146619720.

The previous prime is 220008137. The next prime is 220008233. The reversal of 220008171 is 171800022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220008171 - 2¹⁸ = 219746027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220008121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945 + ... + 21066.

It is an arithmetic number, because the mean of its divisors is an integer number (36681128).

Almost surely, 2^220008171 is an apocalyptic number.

220008171 is a deficient number, since it is larger than the sum of its proper divisors (73440853).

220008171 is a wasteful number, since it uses less digits than its factorization.

220008171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26201.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 220008171 is about 14832.6724159876. The cubic root of 220008171 is about 603.6885473419.

Adding to 220008171 its reverse (171800022), we get a palindrome (391808193).

The spelling of 220008171 in words is "two hundred twenty million, eight thousand, one hundred seventy-one".