12218694 has 8 divisors (see below), whose sum is σ = 24437400. Its totient is φ = 4072896.

The previous prime is 12218663. The next prime is 12218707. The reversal of 12218694 is 49681221.

12218694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12218694 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018219 + ... + 1018230.

It is an arithmetic number, because the mean of its divisors is an integer number (3054675).

Almost surely, 2^12218694 is an apocalyptic number.

12218694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12218694 is a wasteful number, since it uses less digits than its factorization.

12218694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036454.

The product of its digits is 6912, while the sum is 33.

The square root of 12218694 is about 3495.5248532946. The cubic root of 12218694 is about 230.3252738592.

The spelling of 12218694 in words is "twelve million, two hundred eighteen thousand, six hundred ninety-four".