111121112012 has 12 divisors (see below), whose sum is σ = 194465381376. Its totient is φ = 55559574480.

The previous prime is 111121112009. The next prime is 111121112027. The reversal of 111121112012 is 210211121111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48437 + ... + 473907.

It is an arithmetic number, because the mean of its divisors is an integer number (16205448448).

Almost surely, 2^111121112012 is an apocalyptic number.

It is an amenable number.

111121112012 is a deficient number, since it is larger than the sum of its proper divisors (83344269364).

111121112012 is a wasteful number, since it uses less digits than its factorization.

111121112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490768 (or 490766 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111121112012 its reverse (210211121111), we get a palindrome (321332233123).

Subtracting 111121112012 from its reverse (210211121111), we obtain a palindrome (99090009099).

The spelling of 111121112012 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred twelve thousand, twelve".