12663222 has 32 divisors (see below), whose sum is σ = 29756160. Its totient is φ = 3541920.

The previous prime is 12663197. The next prime is 12663223. The reversal of 12663222 is 22236621.

12663222 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12663192 and 12663201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6522 + ... + 8237.

It is an arithmetic number, because the mean of its divisors is an integer number (929880).

Almost surely, 2^12663222 is an apocalyptic number.

12663222 is an abundant number, since it is smaller than the sum of its proper divisors (17092938).

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

12663222 is a wasteful number, since it uses less digits than its factorization.

12663222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14788.

The product of its digits is 1728, while the sum is 24.

The square root of 12663222 is about 3558.5421172160. The cubic root of 12663222 is about 233.0852224370.

Adding to 12663222 its reverse (22236621), we get a palindrome (34899843).

The spelling of 12663222 in words is "twelve million, six hundred sixty-three thousand, two hundred twenty-two".