12223227 has 4 divisors (see below), whose sum is σ = 16297640. Its totient is φ = 8148816.

The previous prime is 12223199. The next prime is 12223271. The reversal of 12223227 is 72232221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12223227 - 2¹¹ = 12221179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223927) 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, 2037202 + ... + 2037207.

It is an arithmetic number, because the mean of its divisors is an integer number (4074410).

Almost surely, 2^12223227 is an apocalyptic number.

12223227 is a deficient number, since it is larger than the sum of its proper divisors (4074413).

12223227 is an equidigital number, since it uses as much as digits as its factorization.

12223227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074412.

The product of its digits is 672, while the sum is 21.

The square root of 12223227 is about 3496.1731936505. The cubic root of 12223227 is about 230.3537530453.

Adding to 12223227 its reverse (72232221), we get a palindrome (84455448).

The spelling of 12223227 in words is "twelve million, two hundred twenty-three thousand, two hundred twenty-seven".