111120223120 has 40 divisors (see below), whose sum is σ = 258369356160. Its totient is φ = 44445536640.

The previous prime is 111120223079. The next prime is 111120223133. The reversal of 111120223120 is 21322021111.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 111120223094 and 111120223103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2027275 + ... + 2081365.

It is an arithmetic number, because the mean of its divisors is an integer number (6459233904).

Almost surely, 2^111120223120 is an apocalyptic number.

111120223120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111120223120 is an abundant number, since it is smaller than the sum of its proper divisors (147249133040).

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

111120223120 is a wasteful number, since it uses less digits than its factorization.

111120223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79783 (or 79777 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111120223120 its reverse (21322021111), we get a palindrome (132442244231).

The spelling of 111120223120 in words is "one hundred eleven billion, one hundred twenty million, two hundred twenty-three thousand, one hundred twenty".