11220223203 has 24 divisors (see below), whose sum is σ = 18900284000. Its totient is φ = 6411554352.

The previous prime is 11220223199. The next prime is 11220223213. The reversal of 11220223203 is 30232202211.

It is not a de Polignac number, because 11220223203 - 2² = 11220223199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220223213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1814248 + ... + 1820421.

Almost surely, 2^11220223203 is an apocalyptic number.

11220223203 is a deficient number, since it is larger than the sum of its proper divisors (7680060797).

11220223203 is an equidigital number, since it uses as much as digits as its factorization.

11220223203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634696 (or 3634679 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 11220223203 its reverse (30232202211), we get a palindrome (41452425414).

The spelling of 11220223203 in words is "eleven billion, two hundred twenty million, two hundred twenty-three thousand, two hundred three".