12422219 has 4 divisors (see below), whose sum is σ = 13076040. Its totient is φ = 11768400.

The previous prime is 12422209. The next prime is 12422243. The reversal of 12422219 is 91222421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12422219 is a prime.

It is a super-2 number, since 2×12422219² = 308623049767922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12422194 and 12422203.

It is not an unprimeable number, because it can be changed into a prime (12422209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326882 + ... + 326919.

It is an arithmetic number, because the mean of its divisors is an integer number (3269010).

Almost surely, 2^12422219 is an apocalyptic number.

12422219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12422219 is a deficient number, since it is larger than the sum of its proper divisors (653821).

12422219 is an equidigital number, since it uses as much as digits as its factorization.

12422219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653820.

The product of its digits is 576, while the sum is 23.

The square root of 12422219 is about 3524.5168463209. The cubic root of 12422219 is about 231.5970698818.

The spelling of 12422219 in words is "twelve million, four hundred twenty-two thousand, two hundred nineteen".