12224231211 has 4 divisors (see below), whose sum is σ = 16298974952. Its totient is φ = 8149487472.

The previous prime is 12224231207. The next prime is 12224231233. The reversal of 12224231211 is 11213242221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12224231211 - 2² = 12224231207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12224231111) 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, 2037371866 + ... + 2037371871.

It is an arithmetic number, because the mean of its divisors is an integer number (4074743738).

Almost surely, 2^12224231211 is an apocalyptic number.

12224231211 is a deficient number, since it is larger than the sum of its proper divisors (4074743741).

12224231211 is an equidigital number, since it uses as much as digits as its factorization.

12224231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074743740.

The product of its digits is 384, while the sum is 21.

Adding to 12224231211 its reverse (11213242221), we get a palindrome (23437473432).

The spelling of 12224231211 in words is "twelve billion, two hundred twenty-four million, two hundred thirty-one thousand, two hundred eleven".