11220324240 has 80 divisors (see below), whose sum is σ = 34841520000. Its totient is φ = 2987053056.

The previous prime is 11220324217. The next prime is 11220324281. The reversal of 11220324240 is 4242302211.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104736 + ... + 182784.

It is an arithmetic number, because the mean of its divisors is an integer number (435519000).

Almost surely, 2^11220324240 is an apocalyptic number.

11220324240 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 11220324240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17420760000).

11220324240 is an abundant number, since it is smaller than the sum of its proper divisors (23621195760).

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

11220324240 is a wasteful number, since it uses less digits than its factorization.

11220324240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78664 (or 78658 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 11220324240 its reverse (4242302211), we get a palindrome (15462626451).

The spelling of 11220324240 in words is "eleven billion, two hundred twenty million, three hundred twenty-four thousand, two hundred forty".