112111122012 has 24 divisors (see below), whose sum is σ = 261619316112. Its totient is φ = 37366560000.

The previous prime is 112111121959. The next prime is 112111122061. The reversal of 112111122012 is 210221111211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 112111121982 and 112111122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352989 + ... + 590612.

It is an arithmetic number, because the mean of its divisors is an integer number (10900804838).

Almost surely, 2^112111122012 is an apocalyptic number.

112111122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112111122012 is an abundant number, since it is smaller than the sum of its proper divisors (149508194100).

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

112111122012 is a wasteful number, since it uses less digits than its factorization.

112111122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953509 (or 953507 counting only the distinct ones).

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

Adding to 112111122012 its reverse (210221111211), we get a palindrome (322332233223).

The spelling of 112111122012 in words is "one hundred twelve billion, one hundred eleven million, one hundred twenty-two thousand, twelve".