12218468 has 12 divisors (see below), whose sum is σ = 21407232. Its totient is φ = 6102120.

The previous prime is 12218443. The next prime is 12218489. The reversal of 12218468 is 86481221.

It is a happy number.

It is an unprimeable number.

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, 4733 + ... + 6843.

It is an arithmetic number, because the mean of its divisors is an integer number (1783936).

Almost surely, 2^12218468 is an apocalyptic number.

It is an amenable number.

12218468 is a deficient number, since it is larger than the sum of its proper divisors (9188764).

12218468 is a wasteful number, since it uses less digits than its factorization.

12218468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562 (or 3560 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 12218468 is about 3495.4925260970. The cubic root of 12218468 is about 230.3238537993.

Adding to 12218468 its reverse (86481221), we get a palindrome (98699689).

The spelling of 12218468 in words is "twelve million, two hundred eighteen thousand, four hundred sixty-eight".