5221871261171 has 2 divisors, whose sum is σ = 5221871261172. Its totient is φ = 5221871261170.

The previous prime is 5221871261161. The next prime is 5221871261261. The reversal of 5221871261171 is 1711621781225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5221871261171 - 2⁶ = 5221871261107 is a prime.

It is a super-2 number, since 2×5221871261171² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5221871261161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610935630585 + 2610935630586.

It is an arithmetic number, because the mean of its divisors is an integer number (2610935630586).

Almost surely, 2^{5221871261171} is an apocalyptic number.

5221871261171 is a deficient number, since it is larger than the sum of its proper divisors (1).

5221871261171 is an equidigital number, since it uses as much as digits as its factorization.

5221871261171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 44.

The spelling of 5221871261171 in words is "five trillion, two hundred twenty-one billion, eight hundred seventy-one million, two hundred sixty-one thousand, one hundred seventy-one".