1224444412 has 12 divisors (see below), whose sum is σ = 2163994056. Its totient is φ = 606160400.

The previous prime is 1224444401. The next prime is 1224444421. The reversal of 1224444412 is 2144444221.

It is a happy number.

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

It is a congruent number.

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, 1514998 + ... + 1515805.

It is an arithmetic number, because the mean of its divisors is an integer number (180332838).

Almost surely, 2^1224444412 is an apocalyptic number.

It is an amenable number.

1224444412 is a deficient number, since it is larger than the sum of its proper divisors (939549644).

1224444412 is a wasteful number, since it uses less digits than its factorization.

1224444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030908 (or 3030906 counting only the distinct ones).

The product of its digits is 8192, while the sum is 28.

The square root of 1224444412 is about 34992.0621284314. The cubic root of 1224444412 is about 1069.8256949598.

Adding to 1224444412 its reverse (2144444221), we get a palindrome (3368888633).

The spelling of 1224444412 in words is "one billion, two hundred twenty-four million, four hundred forty-four thousand, four hundred twelve".