12333222 has 56 divisors (see below), whose sum is σ = 30297960. Its totient is φ = 3732480.

The previous prime is 12333203. The next prime is 12333239. The reversal of 12333222 is 22233321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12333195 and 12333204.

It is a congruent 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 27 ways as a sum of consecutive naturals, for example, 15654 + ... + 16422.

It is an arithmetic number, because the mean of its divisors is an integer number (541035).

Almost surely, 2^12333222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12333222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15148980).

12333222 is an abundant number, since it is smaller than the sum of its proper divisors (17964738).

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

12333222 is an equidigital number, since it uses as much as digits as its factorization.

12333222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 785 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 12333222 is about 3511.8687333099. The cubic root of 12333222 is about 231.0426637340.

Adding to 12333222 its reverse (22233321), we get a palindrome (34566543).

Subtracting 12333222 from its reverse (22233321), we obtain a palindrome (9900099).

The spelling of 12333222 in words is "twelve million, three hundred thirty-three thousand, two hundred twenty-two".