12223209 has 8 divisors (see below), whose sum is σ = 16738240. Its totient is φ = 7928496.

The previous prime is 12223199. The next prime is 12223271. The reversal of 12223209 is 90232221.

12223209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12223209 - 2⁹ = 12222697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223009) 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, 54949 + ... + 55170.

It is an arithmetic number, because the mean of its divisors is an integer number (2092280).

Almost surely, 2^12223209 is an apocalyptic number.

It is an amenable number.

12223209 is a deficient number, since it is larger than the sum of its proper divisors (4515031).

12223209 is a wasteful number, since it uses less digits than its factorization.

12223209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110159.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12223209 is about 3496.1706194063. The cubic root of 12223209 is about 230.3536399718.

The spelling of 12223209 in words is "twelve million, two hundred twenty-three thousand, two hundred nine".