111110120212 has 96 divisors (see below), whose sum is σ = 250853670144. Its totient is φ = 41886028800.

The previous prime is 111110120189. The next prime is 111110120221. The reversal of 111110120212 is 212021011111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 111110120192 and 111110120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555162 + ... + 728302.

It is an arithmetic number, because the mean of its divisors is an integer number (2613059064).

Almost surely, 2^111110120212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111110120212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125426835072).

111110120212 is an abundant number, since it is smaller than the sum of its proper divisors (139743549932).

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

111110120212 is a wasteful number, since it uses less digits than its factorization.

111110120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173249 (or 173247 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111110120212 its reverse (212021011111), we get a palindrome (323131131323).

The spelling of 111110120212 in words is "one hundred eleven billion, one hundred ten million, one hundred twenty thousand, two hundred twelve".