12021322223 has 2 divisors, whose sum is σ = 12021322224. Its totient is φ = 12021322222.

The previous prime is 12021322199. The next prime is 12021322267. The reversal of 12021322223 is 32222312021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021322223 - 2¹⁰ = 12021321199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021322195 and 12021322204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021322283) 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, 6010661111 + 6010661112.

It is an arithmetic number, because the mean of its divisors is an integer number (6010661112).

Almost surely, 2^12021322223 is an apocalyptic number.

12021322223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021322223 is an equidigital number, since it uses as much as digits as its factorization.

12021322223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12021322223 its reverse (32222312021), we get a palindrome (44243634244).

The spelling of 12021322223 in words is "twelve billion, twenty-one million, three hundred twenty-two thousand, two hundred twenty-three".