12223343221 has 2 divisors, whose sum is σ = 12223343222. Its totient is φ = 12223343220.

The previous prime is 12223343189. The next prime is 12223343233. The reversal of 12223343221 is 12234332221.

12223343221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9359595025 + 2863748196 = 96745^2 + 53514^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223343221 - 2⁵ = 12223343189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12223343291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111671610 + 6111671611.

It is an arithmetic number, because the mean of its divisors is an integer number (6111671611).

Almost surely, 2^12223343221 is an apocalyptic number.

It is an amenable number.

12223343221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223343221 is an equidigital number, since it uses as much as digits as its factorization.

12223343221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

Adding to 12223343221 its reverse (12234332221), we get a palindrome (24457675442).

The spelling of 12223343221 in words is "twelve billion, two hundred twenty-three million, three hundred forty-three thousand, two hundred twenty-one".