11223213330221 has 4 divisors (see below), whose sum is σ = 11223940096512. Its totient is φ = 11222486563932.

The previous prime is 11223213330193. The next prime is 11223213330233. The reversal of 11223213330221 is 12203331232211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223213330221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223213330271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363359981 + ... + 363390866.

It is an arithmetic number, because the mean of its divisors is an integer number (2805985024128).

Almost surely, 2^{11223213330221} is an apocalyptic number.

It is an amenable number.

11223213330221 is a deficient number, since it is larger than the sum of its proper divisors (726766291).

11223213330221 is an equidigital number, since it uses as much as digits as its factorization.

11223213330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726766290.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 11223213330221 its reverse (12203331232211), we get a palindrome (23426544562432).

The spelling of 11223213330221 in words is "eleven trillion, two hundred twenty-three billion, two hundred thirteen million, three hundred thirty thousand, two hundred twenty-one".