12822056 has 16 divisors (see below), whose sum is σ = 25890900. Its totient is φ = 5917824.

The previous prime is 12822037. The next prime is 12822059. The reversal of 12822056 is 65022821.

It can be written as a sum of positive squares in 2 ways, for example, as 10956100 + 1865956 = 3310^2 + 1366^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (12822059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61541 + ... + 61748.

Almost surely, 2^12822056 is an apocalyptic number.

It is an amenable number.

12822056 is an abundant number, since it is smaller than the sum of its proper divisors (13068844).

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

12822056 is a wasteful number, since it uses less digits than its factorization.

12822056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123308 (or 123304 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12822056 is about 3580.7898570008. The cubic root of 12822056 is about 234.0557005737.

Adding to 12822056 its reverse (65022821), we get a palindrome (77844877).

The spelling of 12822056 in words is "twelve million, eight hundred twenty-two thousand, fifty-six".