111230221320 has 96 divisors (see below), whose sum is σ = 365077528920. Its totient is φ = 29367705600.

The previous prime is 111230221309. The next prime is 111230221321. The reversal of 111230221320 is 23122032111.

111230221320 is a `hidden beast` number, since 1 + 1 + 123 + 0 + 221 + 320 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 110677313124 + 552908196 = 332682^2 + 23514^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111230221293 and 111230221302.

It is not an unprimeable number, because it can be changed into a prime (111230221321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1493209 + ... + 1565928.

Almost surely, 2^111230221320 is an apocalyptic number.

111230221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111230221320 is an abundant number, since it is smaller than the sum of its proper divisors (253847307600).

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

111230221320 is a wasteful number, since it uses less digits than its factorization.

111230221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059255 (or 3059248 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111230221320 its reverse (23122032111), we get a palindrome (134352253431).

The spelling of 111230221320 in words is "one hundred eleven billion, two hundred thirty million, two hundred twenty-one thousand, three hundred twenty".