12656222 has 8 divisors (see below), whose sum is σ = 19058976. Its totient is φ = 6303232.

The previous prime is 12656221. The next prime is 12656227. The reversal of 12656222 is 22265621.

12656222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12656191 and 12656200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656221) 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, 11798 + ... + 12825.

It is an arithmetic number, because the mean of its divisors is an integer number (2382372).

Almost surely, 2^12656222 is an apocalyptic number.

12656222 is a deficient number, since it is larger than the sum of its proper divisors (6402754).

12656222 is a wasteful number, since it uses less digits than its factorization.

12656222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24882.

The product of its digits is 2880, while the sum is 26.

The square root of 12656222 is about 3557.5584324084. The cubic root of 12656222 is about 233.0422660896.

The spelling of 12656222 in words is "twelve million, six hundred fifty-six thousand, two hundred twenty-two".