11220032320 has 112 divisors (see below), whose sum is σ = 30572707968. Its totient is φ = 3842058240.

The previous prime is 11220032303. The next prime is 11220032321. The reversal of 11220032320 is 2323002211.

It is a tau number, because it is divible by the number of its divisors (112).

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 = 11220032294 and 11220032303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220032321) 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 15 ways as a sum of consecutive naturals, for example, 2105179 + ... + 2110501.

Almost surely, 2^11220032320 is an apocalyptic number.

11220032320 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 11220032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15286353984).

11220032320 is an abundant number, since it is smaller than the sum of its proper divisors (19352675648).

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

11220032320 is an equidigital number, since it uses as much as digits as its factorization.

11220032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 11220032320 its reverse (2323002211), we get a palindrome (13543034531).

The spelling of 11220032320 in words is "eleven billion, two hundred twenty million, thirty-two thousand, three hundred twenty".