12201223 has 4 divisors (see below), whose sum is σ = 12918960. Its totient is φ = 11483488.

The previous prime is 12201193. The next prime is 12201229. The reversal of 12201223 is 32210221.

12201223 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 12201223 - 2⁵ = 12201191 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 (12201229) 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, 358843 + ... + 358876.

It is an arithmetic number, because the mean of its divisors is an integer number (3229740).

Almost surely, 2^12201223 is an apocalyptic number.

12201223 is a deficient number, since it is larger than the sum of its proper divisors (717737).

12201223 is an equidigital number, since it uses as much as digits as its factorization.

12201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717736.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12201223 is about 3493.0249068680. The cubic root of 12201223 is about 230.2154440005.

Adding to 12201223 its reverse (32210221), we get a palindrome (44411444).

The spelling of 12201223 in words is "twelve million, two hundred one thousand, two hundred twenty-three".