12206223 has 6 divisors (see below), whose sum is σ = 17631224. Its totient is φ = 8137476.

The previous prime is 12206209. The next prime is 12206269. The reversal of 12206223 is 32260221.

12206223 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12206223 - 2⁵ = 12206191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12206196 and 12206205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12206203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678115 + ... + 678132.

Almost surely, 2^12206223 is an apocalyptic number.

12206223 is a deficient number, since it is larger than the sum of its proper divisors (5425001).

12206223 is a wasteful number, since it uses less digits than its factorization.

12206223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356253 (or 1356250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12206223 is about 3493.7405456044. The cubic root of 12206223 is about 230.2468867507.

Adding to 12206223 its reverse (32260221), we get a palindrome (44466444).

The spelling of 12206223 in words is "twelve million, two hundred six thousand, two hundred twenty-three".