11043441220 has 96 divisors (see below), whose sum is σ = 27138263040. Its totient is φ = 3696675840.

The previous prime is 11043441181. The next prime is 11043441287. The reversal of 11043441220 is 2214434011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11043441191 and 11043441200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1165261 + ... + 1174699.

It is an arithmetic number, because the mean of its divisors is an integer number (282690240).

Almost surely, 2^11043441220 is an apocalyptic number.

11043441220 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 11043441220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13569131520).

11043441220 is an abundant number, since it is smaller than the sum of its proper divisors (16094821820).

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

11043441220 is a wasteful number, since it uses less digits than its factorization.

11043441220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9653 (or 9651 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11043441220 its reverse (2214434011), we get a palindrome (13257875231).

The spelling of 11043441220 in words is "eleven billion, forty-three million, four hundred forty-one thousand, two hundred twenty".