12223247 has 4 divisors (see below), whose sum is σ = 12236736. Its totient is φ = 12209760.

The previous prime is 12223199. The next prime is 12223271. The reversal of 12223247 is 74232221.

It is a happy number.

12223247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12223247 - 2¹⁶ = 12157711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223447) 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, 5279 + ... + 7232.

It is an arithmetic number, because the mean of its divisors is an integer number (3059184).

Almost surely, 2^12223247 is an apocalyptic number.

12223247 is a deficient number, since it is larger than the sum of its proper divisors (13489).

12223247 is an equidigital number, since it uses as much as digits as its factorization.

12223247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13488.

The product of its digits is 1344, while the sum is 23.

The square root of 12223247 is about 3496.1760539195. The cubic root of 12223247 is about 230.3538786824.

Adding to 12223247 its reverse (74232221), we get a palindrome (86455468).

The spelling of 12223247 in words is "twelve million, two hundred twenty-three thousand, two hundred forty-seven".