12424402224 has 120 divisors (see below), whose sum is σ = 37477413792. Its totient is φ = 3819663360.

The previous prime is 12424402189. The next prime is 12424402273. The reversal of 12424402224 is 42220442421.

12424402224 is a `hidden beast` number, since 12 + 4 + 24 + 402 + 224 = 666.

It is a super-2 number, since 2×12424402224² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3174829 + ... + 3178739.

Almost surely, 2^12424402224 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 12424402224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18738706896).

12424402224 is an abundant number, since it is smaller than the sum of its proper divisors (25053011568).

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

12424402224 is a wasteful number, since it uses less digits than its factorization.

12424402224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5626 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 12424402224 its reverse (42220442421), we get a palindrome (54644844645).

The spelling of 12424402224 in words is "twelve billion, four hundred twenty-four million, four hundred two thousand, two hundred twenty-four".