12822786220 has 12 divisors (see below), whose sum is σ = 26927851104. Its totient is φ = 5129114480.

The previous prime is 12822786187. The next prime is 12822786241. The reversal of 12822786220 is 2268722821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320569636 + ... + 320569675.

It is an arithmetic number, because the mean of its divisors is an integer number (2243987592).

Almost surely, 2^12822786220 is an apocalyptic number.

12822786220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12822786220 is an abundant number, since it is smaller than the sum of its proper divisors (14105064884).

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

12822786220 is a wasteful number, since it uses less digits than its factorization.

12822786220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641139320 (or 641139318 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 12822786220 in words is "twelve billion, eight hundred twenty-two million, seven hundred eighty-six thousand, two hundred twenty".