12223211 has 16 divisors (see below), whose sum is σ = 16412928. Its totient is φ = 8791200.

The previous prime is 12223199. The next prime is 12223271. The reversal of 12223211 is 11232221.

It is a happy number.

It is not a de Polignac number, because 12223211 - 2¹⁴ = 12206827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12223271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5105 + ... + 7106.

It is an arithmetic number, because the mean of its divisors is an integer number (1025808).

Almost surely, 2^12223211 is an apocalyptic number.

12223211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12223211 is a deficient number, since it is larger than the sum of its proper divisors (4189717).

12223211 is a wasteful number, since it uses less digits than its factorization.

12223211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12242.

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

The square root of 12223211 is about 3496.1709054335. The cubic root of 12223211 is about 230.3536525355.

Adding to 12223211 its reverse (11232221), we get a palindrome (23455432).

The spelling of 12223211 in words is "twelve million, two hundred twenty-three thousand, two hundred eleven".