8221312836836 has 48 divisors (see below), whose sum is σ = 15953226011520. Its totient is φ = 3675538944000.

The previous prime is 8221312836797. The next prime is 8221312836859. The reversal of 8221312836836 is 6386382131228.

It is a super-2 number, since 2×8221312836836² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 79311401 + ... + 79414991.

It is an arithmetic number, because the mean of its divisors is an integer number (332358875240).

Almost surely, 2^{8221312836836} is an apocalyptic number.

It is an amenable number.

8221312836836 is a deficient number, since it is larger than the sum of its proper divisors (7731913174684).

8221312836836 is a wasteful number, since it uses less digits than its factorization.

8221312836836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133236 (or 133234 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 53.

The spelling of 8221312836836 in words is "eight trillion, two hundred twenty-one billion, three hundred twelve million, eight hundred thirty-six thousand, eight hundred thirty-six".