2221323203 has 8 divisors (see below), whose sum is σ = 2443290096. Its totient is φ = 2019383520.

The previous prime is 2221323191. The next prime is 2221323211. The reversal of 2221323203 is 3023231222.

It is not a de Polignac number, because 2221323203 - 2²⁰ = 2220274627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221323263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833126 + ... + 835787.

It is an arithmetic number, because the mean of its divisors is an integer number (305411262).

Almost surely, 2^2221323203 is an apocalyptic number.

2221323203 is a deficient number, since it is larger than the sum of its proper divisors (221966893).

2221323203 is an equidigital number, since it uses as much as digits as its factorization.

2221323203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668946 (or 1668924 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2221323203 is about 47130.9155756601. The cubic root of 2221323203 is about 1304.7798795902.

Adding to 2221323203 its reverse (3023231222), we get a palindrome (5244554425).

The spelling of 2221323203 in words is "two billion, two hundred twenty-one million, three hundred twenty-three thousand, two hundred three".