8871222256231 has 2 divisors, whose sum is σ = 8871222256232. Its totient is φ = 8871222256230.

The previous prime is 8871222256213. The next prime is 8871222256327. The reversal of 8871222256231 is 1326522221788.

Together with previous prime (8871222256213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8871222256231 - 2⁷ = 8871222256103 is a prime.

It is a super-2 number, since 2×8871222256231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8871222256531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4435611128115 + 4435611128116.

It is an arithmetic number, because the mean of its divisors is an integer number (4435611128116).

Almost surely, 2^{8871222256231} is an apocalyptic number.

8871222256231 is a deficient number, since it is larger than the sum of its proper divisors (1).

8871222256231 is an equidigital number, since it uses as much as digits as its factorization.

8871222256231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 49.

The spelling of 8871222256231 in words is "eight trillion, eight hundred seventy-one billion, two hundred twenty-two million, two hundred fifty-six thousand, two hundred thirty-one".