1224320012 has 12 divisors (see below), whose sum is σ = 2149035336. Its totient is φ = 610309920.

The previous prime is 1224319997. The next prime is 1224320017. The reversal of 1224320012 is 2100234221.

It is not an unprimeable number, because it can be changed into a prime (1224320017) 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 3 ways as a sum of consecutive naturals, for example, 461033 + ... + 463680.

It is an arithmetic number, because the mean of its divisors is an integer number (179086278).

Almost surely, 2^1224320012 is an apocalyptic number.

It is an amenable number.

1224320012 is a deficient number, since it is larger than the sum of its proper divisors (924715324).

1224320012 is a wasteful number, since it uses less digits than its factorization.

1224320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925048 (or 925046 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1224320012 is about 34990.2845372826. The cubic root of 1224320012 is about 1069.7894633371.

Adding to 1224320012 its reverse (2100234221), we get a palindrome (3324554233).

The spelling of 1224320012 in words is "one billion, two hundred twenty-four million, three hundred twenty thousand, twelve".