220200200021171 has 2 divisors, whose sum is σ = 220200200021172. Its totient is φ = 220200200021170.

The previous prime is 220200200021147. The next prime is 220200200021233. The reversal of 220200200021171 is 171120002002022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220200200021171 - 2⁶ = 220200200021107 is a prime.

It is a super-2 number, since 2×220200200021171² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220200200011171) 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, 110100100010585 + 110100100010586.

It is an arithmetic number, because the mean of its divisors is an integer number (110100100010586).

Almost surely, 2^{220200200021171} is an apocalyptic number.

220200200021171 is a deficient number, since it is larger than the sum of its proper divisors (1).

220200200021171 is an equidigital number, since it uses as much as digits as its factorization.

220200200021171 is an odious number, because the sum of its binary digits is odd.

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

Adding to 220200200021171 its reverse (171120002002022), we get a palindrome (391320202023193).

The spelling of 220200200021171 in words is "two hundred twenty trillion, two hundred billion, two hundred million, twenty-one thousand, one hundred seventy-one".