11220321220201 has 4 divisors (see below), whose sum is σ = 11220335484372. Its totient is φ = 11220306956032.

The previous prime is 11220321220181. The next prime is 11220321220211. The reversal of 11220321220201 is 10202212302211.

11220321220201 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 6643712451600 + 4576608768601 = 2577540^2 + 2139301^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220321220201 - 2²¹ = 11220319123049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220321220211) 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, 5878756 + ... + 7549861.

It is an arithmetic number, because the mean of its divisors is an integer number (2805083871093).

Almost surely, 2^{11220321220201} is an apocalyptic number.

It is an amenable number.

11220321220201 is a deficient number, since it is larger than the sum of its proper divisors (14264171).

11220321220201 is an equidigital number, since it uses as much as digits as its factorization.

11220321220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14264170.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11220321220201 its reverse (10202212302211), we get a palindrome (21422533522412).

The spelling of 11220321220201 in words is "eleven trillion, two hundred twenty billion, three hundred twenty-one million, two hundred twenty thousand, two hundred one".