111210220120 has 192 divisors, whose sum is σ = 271419271200. Its totient is φ = 40892866560.

The previous prime is 111210220111. The next prime is 111210220151. The reversal of 111210220120 is 21022012111.

It is a self number, because there is not a number n which added to its sum of digits gives 111210220120.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 241236690 + ... + 241237150.

Almost surely, 2^111210220120 is an apocalyptic number.

111210220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111210220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135709635600).

111210220120 is an abundant number, since it is smaller than the sum of its proper divisors (160209051080).

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

111210220120 is a wasteful number, since it uses less digits than its factorization.

111210220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111210220120 its reverse (21022012111), we get a palindrome (132232232231).

The spelling of 111210220120 in words is "one hundred eleven billion, two hundred ten million, two hundred twenty thousand, one hundred twenty".