11221100320 has 48 divisors (see below), whose sum is σ = 26626719168. Its totient is φ = 4468652800.

The previous prime is 11221100309. The next prime is 11221100323. The reversal of 11221100320 is 2300112211.

It is a self number, because there is not a number n which added to its sum of digits gives 11221100320.

It is not an unprimeable number, because it can be changed into a prime (11221100323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118156 + ... + 190795.

It is an arithmetic number, because the mean of its divisors is an integer number (554723316).

Almost surely, 2^11221100320 is an apocalyptic number.

11221100320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221100320 is an abundant number, since it is smaller than the sum of its proper divisors (15405618848).

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

11221100320 is a wasteful number, since it uses less digits than its factorization.

11221100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309193 (or 309185 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11221100320 its reverse (2300112211), we get a palindrome (13521212531).

The spelling of 11221100320 in words is "eleven billion, two hundred twenty-one million, one hundred thousand, three hundred twenty".