12004403224 has 144 divisors (see below), whose sum is σ = 26737867800. Its totient is φ = 5034839040.

The previous prime is 12004403221. The next prime is 12004403227. The reversal of 12004403224 is 42230440021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12004403221) and next prime (12004403227).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12004403195 and 12004403204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004403221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34006632 + ... + 34006984.

Almost surely, 2^12004403224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12004403224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13368933900).

12004403224 is an abundant number, since it is smaller than the sum of its proper divisors (14733464576).

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

12004403224 is a wasteful number, since it uses less digits than its factorization.

12004403224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12004403224 its reverse (42230440021), we get a palindrome (54234843245).

The spelling of 12004403224 in words is "twelve billion, four million, four hundred three thousand, two hundred twenty-four".