1224217963 has 4 divisors (see below), whose sum is σ = 1244967480. Its totient is φ = 1203468448.

The previous prime is 1224217921. The next prime is 1224218011. The reversal of 1224217963 is 3697124221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224217963 - 2⁹ = 1224217451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224217763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10374670 + ... + 10374787.

It is an arithmetic number, because the mean of its divisors is an integer number (311241870).

Almost surely, 2^1224217963 is an apocalyptic number.

1224217963 is a deficient number, since it is larger than the sum of its proper divisors (20749517).

1224217963 is an equidigital number, since it uses as much as digits as its factorization.

1224217963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20749516.

The product of its digits is 36288, while the sum is 37.

The square root of 1224217963 is about 34988.8262592503. The cubic root of 1224217963 is about 1069.7597396327.

The spelling of 1224217963 in words is "one billion, two hundred twenty-four million, two hundred seventeen thousand, nine hundred sixty-three".