1224245321 has 8 divisors (see below), whose sum is σ = 1319364480. Its totient is φ = 1129261392.

The previous prime is 1224245299. The next prime is 1224245333. The reversal of 1224245321 is 1235424221.

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

It is a cyclic number.

It is not a de Polignac number, because 1224245321 - 2²⁶ = 1157136457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224245821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14591 + ... + 51588.

It is an arithmetic number, because the mean of its divisors is an integer number (164920560).

Almost surely, 2^1224245321 is an apocalyptic number.

It is an amenable number.

1224245321 is a deficient number, since it is larger than the sum of its proper divisors (95119159).

1224245321 is a wasteful number, since it uses less digits than its factorization.

1224245321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67615.

The product of its digits is 3840, while the sum is 26.

The square root of 1224245321 is about 34989.2172104493. The cubic root of 1224245321 is about 1069.7677083305.

Adding to 1224245321 its reverse (1235424221), we get a palindrome (2459669542).

The spelling of 1224245321 in words is "one billion, two hundred twenty-four million, two hundred forty-five thousand, three hundred twenty-one".