111012122112 has 80 divisors (see below), whose sum is σ = 295834315392. Its totient is φ = 36992645120.

The previous prime is 111012122077. The next prime is 111012122113. The reversal of 111012122112 is 211221210111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111012122091 and 111012122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012122113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6053437 + ... + 6071747.

Almost surely, 2^111012122112 is an apocalyptic number.

111012122112 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 111012122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147917157696).

111012122112 is an abundant number, since it is smaller than the sum of its proper divisors (184822193280).

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

111012122112 is an equidigital number, since it uses as much as digits as its factorization.

111012122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22279 (or 22263 counting only the distinct ones).

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

Adding to 111012122112 its reverse (211221210111), we get a palindrome (322233332223).

The spelling of 111012122112 in words is "one hundred eleven billion, twelve million, one hundred twenty-two thousand, one hundred twelve".