12224442 has 8 divisors (see below), whose sum is σ = 24448896. Its totient is φ = 4074812.

The previous prime is 12224413. The next prime is 12224473. The reversal of 12224442 is 24442221.

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

12224442 is an admirable number.

It is a super-2 number, since 2×12224442² = 298873964422728, which contains 22 as substring.

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, 1018698 + ... + 1018709.

It is an arithmetic number, because the mean of its divisors is an integer number (3056112).

Almost surely, 2^12224442 is an apocalyptic number.

12224442 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.

12224442 is a wasteful number, since it uses less digits than its factorization.

12224442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037412.

The product of its digits is 1024, while the sum is 21.

The square root of 12224442 is about 3496.3469507473. The cubic root of 12224442 is about 230.3613852507.

Adding to 12224442 its reverse (24442221), we get a palindrome (36666663).

The spelling of 12224442 in words is "twelve million, two hundred twenty-four thousand, four hundred forty-two".