11144441220 has 144 divisors (see below), whose sum is σ = 34616218560. Its totient is φ = 2676706560.

The previous prime is 11144441201. The next prime is 11144441221. The reversal of 11144441220 is 2214444111.

It is not an unprimeable number, because it can be changed into a prime (11144441221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 784299 + ... + 798381.

Almost surely, 2^11144441220 is an apocalyptic number.

11144441220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11144441220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17308109280).

11144441220 is an abundant number, since it is smaller than the sum of its proper divisors (23471777340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11144441220 is a wasteful number, since it uses less digits than its factorization.

11144441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226 (or 14213 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 11144441220 its reverse (2214444111), we get a palindrome (13358885331).

The spelling of 11144441220 in words is "eleven billion, one hundred forty-four million, four hundred forty-one thousand, two hundred twenty".