12806222 has 16 divisors (see below), whose sum is σ = 22568112. Its totient is φ = 5373120.

The previous prime is 12806203. The next prime is 12806249. The reversal of 12806222 is 22260821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22103 + ... + 22674.

It is an arithmetic number, because the mean of its divisors is an integer number (1410507).

Almost surely, 2^12806222 is an apocalyptic number.

12806222 is a deficient number, since it is larger than the sum of its proper divisors (9761890).

12806222 is a wasteful number, since it uses less digits than its factorization.

12806222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44803.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12806222 is about 3578.5782092893. The cubic root of 12806222 is about 233.9593154972.

The spelling of 12806222 in words is "twelve million, eight hundred six thousand, two hundred twenty-two".