12222319 has 2 divisors, whose sum is σ = 12222320. Its totient is φ = 12222318.

The previous prime is 12222307. The next prime is 12222349. The reversal of 12222319 is 91322221.

It is a weak prime.

It is an emirp because it is prime and its reverse (91322221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222319 is a prime.

It is a super-2 number, since 2×12222319² = 298770163475522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12222319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111159 + 6111160.

It is an arithmetic number, because the mean of its divisors is an integer number (6111160).

Almost surely, 2^12222319 is an apocalyptic number.

12222319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222319 is an equidigital number, since it uses as much as digits as its factorization.

12222319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 12222319 is about 3496.0433349717. The cubic root of 12222319 is about 230.3480489764.

The spelling of 12222319 in words is "twelve million, two hundred twenty-two thousand, three hundred nineteen".