1224240223 has 4 divisors (see below), whose sum is σ = 1224319968. Its totient is φ = 1224160480.

The previous prime is 1224240221. The next prime is 1224240247. The reversal of 1224240223 is 3220424221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1224240223 - 2¹ = 1224240221 is a prime.

It is a super-2 number, since 2×1224240223² = 2997528247222179458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224240194 and 1224240203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224240221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8743 + ... + 50248.

It is an arithmetic number, because the mean of its divisors is an integer number (306079992).

Almost surely, 2^1224240223 is an apocalyptic number.

1224240223 is a deficient number, since it is larger than the sum of its proper divisors (79745).

1224240223 is an equidigital number, since it uses as much as digits as its factorization.

1224240223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79744.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1224240223 is about 34989.1443593581. The cubic root of 1224240223 is about 1069.7662234202.

Adding to 1224240223 its reverse (3220424221), we get a palindrome (4444664444).

The spelling of 1224240223 in words is "one billion, two hundred twenty-four million, two hundred forty thousand, two hundred twenty-three".