1222353203 has 4 divisors (see below), whose sum is σ = 1222428168. Its totient is φ = 1222278240.

The previous prime is 1222353199. The next prime is 1222353211. The reversal of 1222353203 is 3023532221.

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 1222353203 - 2² = 1222353199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222353233) 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, 1526 + ... + 49467.

It is an arithmetic number, because the mean of its divisors is an integer number (305607042).

Almost surely, 2^1222353203 is an apocalyptic number.

1222353203 is a deficient number, since it is larger than the sum of its proper divisors (74965).

1222353203 is an equidigital number, since it uses as much as digits as its factorization.

1222353203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74964.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1222353203 is about 34962.1681678926. The cubic root of 1222353203 is about 1069.2163018472.

Adding to 1222353203 its reverse (3023532221), we get a palindrome (4245885424).

The spelling of 1222353203 in words is "one billion, two hundred twenty-two million, three hundred fifty-three thousand, two hundred three".