1224242203 has 4 divisors (see below), whose sum is σ = 1226898288. Its totient is φ = 1221586120.

The previous prime is 1224242179. The next prime is 1224242213. The reversal of 1224242203 is 3022424221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224242203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224242213) 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, 1327351 + ... + 1328272.

It is an arithmetic number, because the mean of its divisors is an integer number (306724572).

Almost surely, 2^1224242203 is an apocalyptic number.

1224242203 is a deficient number, since it is larger than the sum of its proper divisors (2656085).

1224242203 is an equidigital number, since it uses as much as digits as its factorization.

1224242203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656084.

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

The square root of 1224242203 is about 34989.1726538368. The cubic root of 1224242203 is about 1069.7668001415.

Adding to 1224242203 its reverse (3022424221), we get a palindrome (4246666424).

It can be divided in two parts, 12242 and 42203, that added together give a palindrome (54445).

The spelling of 1224242203 in words is "one billion, two hundred twenty-four million, two hundred forty-two thousand, two hundred three".