11103220330221 has 4 divisors (see below), whose sum is σ = 14804293773632. Its totient is φ = 7402146886812.

The previous prime is 11103220330177. The next prime is 11103220330247. The reversal of 11103220330221 is 12203302230111.

11103220330221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 11103220330221 - 2¹⁵ = 11103220297453 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 (11103220330291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1850536721701 + ... + 1850536721706.

It is an arithmetic number, because the mean of its divisors is an integer number (3701073443408).

Almost surely, 2^{11103220330221} is an apocalyptic number.

It is an amenable number.

11103220330221 is a deficient number, since it is larger than the sum of its proper divisors (3701073443411).

11103220330221 is an equidigital number, since it uses as much as digits as its factorization.

11103220330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701073443410.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11103220330221 its reverse (12203302230111), we get a palindrome (23306522560332).

The spelling of 11103220330221 in words is "eleven trillion, one hundred three billion, two hundred twenty million, three hundred thirty thousand, two hundred twenty-one".