2203113221 has 4 divisors (see below), whose sum is σ = 2203214700. Its totient is φ = 2203011744.

The previous prime is 2203113197. The next prime is 2203113223. The reversal of 2203113221 is 1223113022.

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 can be written as a sum of positive squares in 2 ways, for example, as 653824900 + 1549288321 = 25570^2 + 39361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2203113221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2203113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203113223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3536 + ... + 66473.

It is an arithmetic number, because the mean of its divisors is an integer number (550803675).

Almost surely, 2^2203113221 is an apocalyptic number.

It is an amenable number.

2203113221 is a deficient number, since it is larger than the sum of its proper divisors (101479).

2203113221 is an equidigital number, since it uses as much as digits as its factorization.

2203113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101478.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2203113221 is about 46937.3329131513. The cubic root of 2203113221 is about 1301.2046468783.

Adding to 2203113221 its reverse (1223113022), we get a palindrome (3426226243).

The spelling of 2203113221 in words is "two billion, two hundred three million, one hundred thirteen thousand, two hundred twenty-one".