12223889 has 4 divisors (see below), whose sum is σ = 12618240. Its totient is φ = 11829540.

The previous prime is 12223853. The next prime is 12223891. The reversal of 12223889 is 98832221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12223889 - 2⁸ = 12223633 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12223829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197129 + ... + 197190.

It is an arithmetic number, because the mean of its divisors is an integer number (3154560).

Almost surely, 2^12223889 is an apocalyptic number.

It is an amenable number.

12223889 is a deficient number, since it is larger than the sum of its proper divisors (394351).

12223889 is an equidigital number, since it uses as much as digits as its factorization.

12223889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394350.

The product of its digits is 13824, while the sum is 35.

The square root of 12223889 is about 3496.2678673122. The cubic root of 12223889 is about 230.3579115607.

The spelling of 12223889 in words is "twelve million, two hundred twenty-three thousand, eight hundred eighty-nine".