111220022320 has 80 divisors (see below), whose sum is σ = 282209080320. Its totient is φ = 40427206400.

The previous prime is 111220022297. The next prime is 111220022341. The reversal of 111220022320 is 23220022111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×111220022320² (a number of 23 digits) contains 22 as substring.

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 = 111220022294 and 111220022303.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2255691 + ... + 2304469.

It is an arithmetic number, because the mean of its divisors is an integer number (3527613504).

Almost surely, 2^111220022320 is an apocalyptic number.

111220022320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220022320 is an abundant number, since it is smaller than the sum of its proper divisors (170989058000).

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

111220022320 is a wasteful number, since it uses less digits than its factorization.

111220022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51394 (or 51388 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 111220022320 its reverse (23220022111), we get a palindrome (134440044431).

The spelling of 111220022320 in words is "one hundred eleven billion, two hundred twenty million, twenty-two thousand, three hundred twenty".