12212112233 has 2 divisors, whose sum is σ = 12212112234. Its totient is φ = 12212112232.

The previous prime is 12212112181. The next prime is 12212112259. The reversal of 12212112233 is 33221121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12054283264 + 157828969 = 109792^2 + 12563^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212112233 - 2¹⁰ = 12212111209 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212102233) 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, 6106056116 + 6106056117.

It is an arithmetic number, because the mean of its divisors is an integer number (6106056117).

Almost surely, 2^12212112233 is an apocalyptic number.

It is an amenable number.

12212112233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212112233 is an equidigital number, since it uses as much as digits as its factorization.

12212112233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

Adding to 12212112233 its reverse (33221121221), we get a palindrome (45433233454).

The spelling of 12212112233 in words is "twelve billion, two hundred twelve million, one hundred twelve thousand, two hundred thirty-three".