1224144215 has 12 divisors (see below), whose sum is σ = 1708805736. Its totient is φ = 839413008.

The previous prime is 1224144209. The next prime is 1224144239. The reversal of 1224144215 is 5124414221.

It is not a de Polignac number, because 1224144215 - 2¹² = 1224140119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2498009 + ... + 2498498.

It is an arithmetic number, because the mean of its divisors is an integer number (142400478).

Almost surely, 2^1224144215 is an apocalyptic number.

1224144215 is a deficient number, since it is larger than the sum of its proper divisors (484661521).

1224144215 is an equidigital number, since it uses as much as digits as its factorization.

1224144215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996526 (or 4996519 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1224144215 is about 34987.7723640703. The cubic root of 1224144215 is about 1069.7382581025.

Adding to 1224144215 its reverse (5124414221), we get a palindrome (6348558436).

The spelling of 1224144215 in words is "one billion, two hundred twenty-four million, one hundred forty-four thousand, two hundred fifteen".