12256222 has 16 divisors (see below), whose sum is σ = 20703744. Its totient is φ = 5391000.

The previous prime is 12256207. The next prime is 12256271. The reversal of 12256222 is 22265221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12256193 and 12256202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8304 + ... + 9667.

It is an arithmetic number, because the mean of its divisors is an integer number (1293984).

Almost surely, 2^12256222 is an apocalyptic number.

12256222 is a deficient number, since it is larger than the sum of its proper divisors (8447522).

12256222 is a wasteful number, since it uses less digits than its factorization.

12256222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18015.

The product of its digits is 960, while the sum is 22.

The square root of 12256222 is about 3500.8887443048. Note that the first 3 decimals coincide. The cubic root of 12256222 is about 230.5608367515.

It can be divided in two parts, 1225 and 6222, that added together give a palindrome (7447).

The spelling of 12256222 in words is "twelve million, two hundred fifty-six thousand, two hundred twenty-two".