11120333221 has 4 divisors (see below), whose sum is σ = 11120574892. Its totient is φ = 11120091552.

The previous prime is 11120333207. The next prime is 11120333269. The reversal of 11120333221 is 12233302111.

11120333221 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5478220225 + 5642112996 = 74015^2 + 75114^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120333221 - 2²⁵ = 11086778789 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 (11120373221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28080 + ... + 151753.

It is an arithmetic number, because the mean of its divisors is an integer number (2780143723).

Almost surely, 2^11120333221 is an apocalyptic number.

It is an amenable number.

11120333221 is a deficient number, since it is larger than the sum of its proper divisors (241671).

11120333221 is an equidigital number, since it uses as much as digits as its factorization.

11120333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241670.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11120333221 its reverse (12233302111), we get a palindrome (23353635332).

The spelling of 11120333221 in words is "eleven billion, one hundred twenty million, three hundred thirty-three thousand, two hundred twenty-one".