11102221021211 has 6 divisors (see below), whose sum is σ = 11717302518612. Its totient is φ = 10517893598700.

The previous prime is 11102221021181. The next prime is 11102221021223. The reversal of 11102221021211 is 11212012220111.

11102221021211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11102221021211 - 2²⁶ = 11102153912347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11102221021211.

It is not an unprimeable number, because it can be changed into a prime (11102221021231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15377037065 + ... + 15377037786.

It is an arithmetic number, because the mean of its divisors is an integer number (1952883753102).

Almost surely, 2^{11102221021211} is an apocalyptic number.

11102221021211 is a deficient number, since it is larger than the sum of its proper divisors (615081497401).

11102221021211 is an equidigital number, since it uses as much as digits as its factorization.

11102221021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30754074889 (or 30754074870 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11102221021211 its reverse (11212012220111), we get a palindrome (22314233241322).

The spelling of 11102221021211 in words is "eleven trillion, one hundred two billion, two hundred twenty-one million, twenty-one thousand, two hundred eleven".