11013220221 has 8 divisors (see below), whose sum is σ = 14693494944. Its totient is φ = 7337546160.

The previous prime is 11013220217. The next prime is 11013220223. The reversal of 11013220221 is 12202231011.

11013220221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11013220221 - 2² = 11013220217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11013220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013220223) 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 7 ways as a sum of consecutive naturals, for example, 1144575 + ... + 1154156.

It is an arithmetic number, because the mean of its divisors is an integer number (1836686868).

Almost surely, 2^11013220221 is an apocalyptic number.

It is an amenable number.

11013220221 is a deficient number, since it is larger than the sum of its proper divisors (3680274723).

11013220221 is a wasteful number, since it uses less digits than its factorization.

11013220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300331.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11013220221 its reverse (12202231011), we get a palindrome (23215451232).

The spelling of 11013220221 in words is "eleven billion, thirteen million, two hundred twenty thousand, two hundred twenty-one".