111102112212 has 144 divisors (see below), whose sum is σ = 321195111552. Its totient is φ = 29266997760.

The previous prime is 111102112157. The next prime is 111102112243. The reversal of 111102112212 is 212211201111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111102112191 and 111102112200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13354278 + ... + 13362594.

It is an arithmetic number, because the mean of its divisors is an integer number (2230521608).

Almost surely, 2^111102112212 is an apocalyptic number.

111102112212 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 111102112212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160597555776).

111102112212 is an abundant number, since it is smaller than the sum of its proper divisors (210092999340).

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

111102112212 is a wasteful number, since it uses less digits than its factorization.

111102112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298 (or 9283 counting only the distinct ones).

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

Adding to 111102112212 its reverse (212211201111), we get a palindrome (323313313323).

The spelling of 111102112212 in words is "one hundred eleven billion, one hundred two million, one hundred twelve thousand, two hundred twelve".