11221313320 has 32 divisors (see below), whose sum is σ = 28854806400. Its totient is φ = 3847307328.

The previous prime is 11221313317. The next prime is 11221313353. The reversal of 11221313320 is 2331312211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20037780 + ... + 20038339.

It is an arithmetic number, because the mean of its divisors is an integer number (901712700).

Almost surely, 2^11221313320 is an apocalyptic number.

11221313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221313320 is an abundant number, since it is smaller than the sum of its proper divisors (17633493080).

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

11221313320 is a wasteful number, since it uses less digits than its factorization.

11221313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40076137 (or 40076133 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11221313320 its reverse (2331312211), we get a palindrome (13552625531).

The spelling of 11221313320 in words is "eleven billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred twenty".