12223357897 has 2 divisors, whose sum is σ = 12223357898. Its totient is φ = 12223357896.

The previous prime is 12223357879. The next prime is 12223357943. The reversal of 12223357897 is 79875332221.

Together with previous prime (12223357879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11478122496 + 745235401 = 107136^2 + 27299^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223357897 - 2²⁷ = 12089140169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12223357897.

It is not a weakly prime, because it can be changed into another prime (12223357297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111678948 + 6111678949.

It is an arithmetic number, because the mean of its divisors is an integer number (6111678949).

Almost surely, 2^12223357897 is an apocalyptic number.

It is an amenable number.

12223357897 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223357897 is an equidigital number, since it uses as much as digits as its factorization.

12223357897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The spelling of 12223357897 in words is "twelve billion, two hundred twenty-three million, three hundred fifty-seven thousand, eight hundred ninety-seven".