12322821536 has 12 divisors (see below), whose sum is σ = 24260554962. Its totient is φ = 6161410752.

The previous prime is 12322821523. The next prime is 12322821587. The reversal of 12322821536 is 63512822321.

It can be written as a sum of positive squares in only one way, i.e., 8423568400 + 3899253136 = 91780^2 + 62444^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12322821496 and 12322821505.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192544055 + ... + 192544118.

Almost surely, 2^12322821536 is an apocalyptic number.

12322821536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12322821536 is a deficient number, since it is larger than the sum of its proper divisors (11937733426).

12322821536 is an equidigital number, since it uses as much as digits as its factorization.

12322821536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385088183 (or 385088175 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The spelling of 12322821536 in words is "twelve billion, three hundred twenty-two million, eight hundred twenty-one thousand, five hundred thirty-six".