12224431211 has 2 divisors, whose sum is σ = 12224431212. Its totient is φ = 12224431210.

The previous prime is 12224431157. The next prime is 12224431243. The reversal of 12224431211 is 11213442221.

It is a strong prime.

It is an emirp because it is prime and its reverse (11213442221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12224431211 - 2¹⁰ = 12224430187 is a prime.

It is not a weakly prime, because it can be changed into another prime (12224431411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112215605 + 6112215606.

It is an arithmetic number, because the mean of its divisors is an integer number (6112215606).

Almost surely, 2^12224431211 is an apocalyptic number.

12224431211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224431211 is an equidigital number, since it uses as much as digits as its factorization.

12224431211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

Adding to 12224431211 its reverse (11213442221), we get a palindrome (23437873432).

The spelling of 12224431211 in words is "twelve billion, two hundred twenty-four million, four hundred thirty-one thousand, two hundred eleven".