12222112211 has 2 divisors, whose sum is σ = 12222112212. Its totient is φ = 12222112210.

The previous prime is 12222112193. The next prime is 12222112219. The reversal of 12222112211 is 11221122221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12222112211 - 2¹⁴ = 12222095827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12222112211.

It is not a weakly prime, because it can be changed into another prime (12222112219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111056105 + 6111056106.

It is an arithmetic number, because the mean of its divisors is an integer number (6111056106).

Almost surely, 2^12222112211 is an apocalyptic number.

12222112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222112211 is an equidigital number, since it uses as much as digits as its factorization.

12222112211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64, while the sum is 17.

Adding to 12222112211 its reverse (11221122221), we get a palindrome (23443234432).

The spelling of 12222112211 in words is "twelve billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".