12424222 has 16 divisors (see below), whose sum is σ = 18990720. Its totient is φ = 6095232.

The previous prime is 12424201. The next prime is 12424231. The reversal of 12424222 is 22242421.

It is a super-2 number, since 2×12424222² = 308722584610568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12424222.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39538 + ... + 39850.

It is an arithmetic number, because the mean of its divisors is an integer number (1186920).

Almost surely, 2^12424222 is an apocalyptic number.

12424222 is a deficient number, since it is larger than the sum of its proper divisors (6566498).

12424222 is a wasteful number, since it uses less digits than its factorization.

12424222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 512, while the sum is 19.

The square root of 12424222 is about 3524.8009872899. The cubic root of 12424222 is about 231.6095170407.

Adding to 12424222 its reverse (22242421), we get a palindrome (34666643).

The spelling of 12424222 in words is "twelve million, four hundred twenty-four thousand, two hundred twenty-two".