8221474931311 has 2 divisors, whose sum is σ = 8221474931312. Its totient is φ = 8221474931310.

The previous prime is 8221474931291. The next prime is 8221474931317. The reversal of 8221474931311 is 1131394741228.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8221474931311 - 2⁵ = 8221474931279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8221474931317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4110737465655 + 4110737465656.

It is an arithmetic number, because the mean of its divisors is an integer number (4110737465656).

Almost surely, 2^{8221474931311} is an apocalyptic number.

8221474931311 is a deficient number, since it is larger than the sum of its proper divisors (1).

8221474931311 is an equidigital number, since it uses as much as digits as its factorization.

8221474931311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The spelling of 8221474931311 in words is "eight trillion, two hundred twenty-one billion, four hundred seventy-four million, nine hundred thirty-one thousand, three hundred eleven".