12823222 has 8 divisors (see below), whose sum is σ = 19362672. Its totient is φ = 6369000.

The previous prime is 12823211. The next prime is 12823229. The reversal of 12823222 is 22232821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12823222² = 328870044922568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12823193 and 12823202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12823229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20929 + ... + 21532.

It is an arithmetic number, because the mean of its divisors is an integer number (2420334).

Almost surely, 2^12823222 is an apocalyptic number.

12823222 is a deficient number, since it is larger than the sum of its proper divisors (6539450).

12823222 is a wasteful number, since it uses less digits than its factorization.

12823222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42614.

The product of its digits is 768, while the sum is 22.

The square root of 12823222 is about 3580.9526665400. The cubic root of 12823222 is about 234.0627951372.

The spelling of 12823222 in words is "twelve million, eight hundred twenty-three thousand, two hundred twenty-two".