12211223 has 2 divisors, whose sum is σ = 12211224. Its totient is φ = 12211222.

The previous prime is 12211217. The next prime is 12211231. The reversal of 12211223 is 32211221.

It is a happy number.

12211223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12211223 - 2⁶ = 12211159 is a prime.

It is a super-2 number, since 2×12211223² = 298227934311458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211198 and 12211207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105611 + 6105612.

It is an arithmetic number, because the mean of its divisors is an integer number (6105612).

Almost surely, 2^12211223 is an apocalyptic number.

12211223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211223 is an equidigital number, since it uses as much as digits as its factorization.

12211223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 14.

The square root of 12211223 is about 3494.4560377833. The cubic root of 12211223 is about 230.2783209155.

Adding to 12211223 its reverse (32211221), we get a palindrome (44422444).

The spelling of 12211223 in words is "twelve million, two hundred eleven thousand, two hundred twenty-three".