12228223 has 8 divisors (see below), whose sum is σ = 14005280. Its totient is φ = 10458720.

The previous prime is 12228221. The next prime is 12228239. The reversal of 12228223 is 32282221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12228223 - 2¹ = 12228221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12228194 and 12228203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (1750660).

Almost surely, 2^12228223 is an apocalyptic number.

12228223 is a deficient number, since it is larger than the sum of its proper divisors (1777057).

12228223 is an equidigital number, since it uses as much as digits as its factorization.

12228223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777.

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

The square root of 12228223 is about 3496.8876161524. The cubic root of 12228223 is about 230.3851329363.

The spelling of 12228223 in words is "twelve million, two hundred twenty-eight thousand, two hundred twenty-three".