11221033120 has 96 divisors (see below), whose sum is σ = 29327308416. Its totient is φ = 4022860800.

The previous prime is 11221033097. The next prime is 11221033121. The reversal of 11221033120 is 2133012211.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11221033094 and 11221033103.

It is not an unprimeable number, because it can be changed into a prime (11221033121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80062 + ... + 169858.

It is an arithmetic number, because the mean of its divisors is an integer number (305492796).

Almost surely, 2^11221033120 is an apocalyptic number.

11221033120 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 11221033120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14663654208).

11221033120 is an abundant number, since it is smaller than the sum of its proper divisors (18106275296).

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

11221033120 is a wasteful number, since it uses less digits than its factorization.

11221033120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89894 (or 89886 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11221033120 its reverse (2133012211), we get a palindrome (13354045331).

The spelling of 11221033120 in words is "eleven billion, two hundred twenty-one million, thirty-three thousand, one hundred twenty".