12032218 has 8 divisors (see below), whose sum is σ = 19689120. Its totient is φ = 5469180.

The previous prime is 12032213. The next prime is 12032221. The reversal of 12032218 is 81223021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12032195 and 12032204.

It is not an unprimeable number, because it can be changed into a prime (12032213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273438 + ... + 273481.

It is an arithmetic number, because the mean of its divisors is an integer number (2461140).

Almost surely, 2^12032218 is an apocalyptic number.

12032218 is a deficient number, since it is larger than the sum of its proper divisors (7656902).

12032218 is a wasteful number, since it uses less digits than its factorization.

12032218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546932.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12032218 is about 3468.7487657655. The cubic root of 12032218 is about 229.1475565479.

Adding to 12032218 its reverse (81223021), we get a palindrome (93255239).

The spelling of 12032218 in words is "twelve million, thirty-two thousand, two hundred eighteen".