5000221205171 has 2 divisors, whose sum is σ = 5000221205172. Its totient is φ = 5000221205170.

The previous prime is 5000221205117. The next prime is 5000221205209. The reversal of 5000221205171 is 1715021220005.

Together with previous prime (5000221205117) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5000221205171 - 2³⁸ = 4725343298227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5000221205171.

It is not a weakly prime, because it can be changed into another prime (5000221205101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500110602585 + 2500110602586.

It is an arithmetic number, because the mean of its divisors is an integer number (2500110602586).

Almost surely, 2^{5000221205171} is an apocalyptic number.

5000221205171 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000221205171 is an equidigital number, since it uses as much as digits as its factorization.

5000221205171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 26.

Adding to 5000221205171 its reverse (1715021220005), we get a palindrome (6715242425176).

The spelling of 5000221205171 in words is "five trillion, two hundred twenty-one million, two hundred five thousand, one hundred seventy-one".