12223320281 has 2 divisors, whose sum is σ = 12223320282. Its totient is φ = 12223320280.

The previous prime is 12223320269. The next prime is 12223320299. The reversal of 12223320281 is 18202332221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7381387225 + 4841933056 = 85915^2 + 69584^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223320281 - 2¹⁰ = 12223319257 is a prime.

It is a super-2 number, since 2×12223320281² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12223320281.

It is not a weakly prime, because it can be changed into another prime (12223320581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111660140 + 6111660141.

It is an arithmetic number, because the mean of its divisors is an integer number (6111660141).

Almost surely, 2^12223320281 is an apocalyptic number.

It is an amenable number.

12223320281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223320281 is an equidigital number, since it uses as much as digits as its factorization.

12223320281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 12223320281 in words is "twelve billion, two hundred twenty-three million, three hundred twenty thousand, two hundred eighty-one".