14221228 has 12 divisors (see below), whose sum is σ = 28442512. Its totient is φ = 6094800.

The previous prime is 14221211. The next prime is 14221237. The reversal of 14221228 is 82212241.

14221228 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 14221199 and 14221208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253923 + ... + 253978.

Almost surely, 2^14221228 is an apocalyptic number.

It is an amenable number.

14221228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

14221228 is a wasteful number, since it uses less digits than its factorization.

14221228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507912 (or 507910 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 14221228 is about 3771.1043475353. The cubic root of 14221228 is about 242.2770998867.

Adding to 14221228 its reverse (82212241), we get a palindrome (96433469).

The spelling of 14221228 in words is "fourteen million, two hundred twenty-one thousand, two hundred twenty-eight".