12587226822 has 20 divisors (see below), whose sum is σ = 28204712316. Its totient is φ = 4195742220.

The previous prime is 12587226811. The next prime is 12587226829. The reversal of 12587226822 is 22862278521.

12587226822 is a `hidden beast` number, since 1 + 2 + 587 + 2 + 2 + 68 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12587226829) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38849304 + ... + 38849627.

Almost surely, 2^12587226822 is an apocalyptic number.

12587226822 is an abundant number, since it is smaller than the sum of its proper divisors (15617485494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12587226822 is an equidigital number, since it uses as much as digits as its factorization.

12587226822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77698945 (or 77698936 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The spelling of 12587226822 in words is "twelve billion, five hundred eighty-seven million, two hundred twenty-six thousand, eight hundred twenty-two".