111120212112 has 240 divisors, whose sum is σ = 364854683520. Its totient is φ = 28513824768.

The previous prime is 111120212107. The next prime is 111120212113. The reversal of 111120212112 is 211212021111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111120212091 and 111120212100.

It is not an unprimeable number, because it can be changed into a prime (111120212113) 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 47 ways as a sum of consecutive naturals, for example, 2074564 + ... + 2127452.

It is an arithmetic number, because the mean of its divisors is an integer number (1520227848).

Almost surely, 2^111120212112 is an apocalyptic number.

111120212112 is a gapful number since it is divisible by the number (12) 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 111120212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182427341760).

111120212112 is an abundant number, since it is smaller than the sum of its proper divisors (253734471408).

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

111120212112 is a wasteful number, since it uses less digits than its factorization.

111120212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52970 (or 52951 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111120212112 its reverse (211212021111), we get a palindrome (322332233223).

The spelling of 111120212112 in words is "one hundred eleven billion, one hundred twenty million, two hundred twelve thousand, one hundred twelve".