11220203223 has 12 divisors (see below), whose sum is σ = 16274774880. Its totient is φ = 7448836416.

The previous prime is 11220203207. The next prime is 11220203227. The reversal of 11220203223 is 32230202211.

It is not a de Polignac number, because 11220203223 - 2⁴ = 11220203207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220203196 and 11220203205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220203227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2605986 + ... + 2610287.

It is an arithmetic number, because the mean of its divisors is an integer number (1356231240).

Almost surely, 2^11220203223 is an apocalyptic number.

11220203223 is a deficient number, since it is larger than the sum of its proper divisors (5054571657).

11220203223 is a wasteful number, since it uses less digits than its factorization.

11220203223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5216518 (or 5216515 counting only the distinct ones).

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

Adding to 11220203223 its reverse (32230202211), we get a palindrome (43450405434).

The spelling of 11220203223 in words is "eleven billion, two hundred twenty million, two hundred three thousand, two hundred twenty-three".