111111202102012 has 24 divisors (see below), whose sum is σ = 222362784838656. Its totient is φ = 47589005050608.

The previous prime is 111111202102003. The next prime is 111111202102037. The reversal of 111111202102012 is 210201202111111.

111111202102012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1253353408 + ... + 1253442055.

It is an arithmetic number, because the mean of its divisors is an integer number (9265116034944).

Almost surely, 2^{111111202102012} is an apocalyptic number.

It is an amenable number.

111111202102012 is an abundant number, since it is smaller than the sum of its proper divisors (111251582736644).

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

111111202102012 is a wasteful number, since it uses less digits than its factorization.

111111202102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506797057 (or 2506797055 counting only the distinct ones).

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

Adding to 111111202102012 its reverse (210201202111111), we get a palindrome (321312404213123).

Subtracting 111111202102012 from its reverse (210201202111111), we obtain a palindrome (99090000009099).

The spelling of 111111202102012 in words is "one hundred eleven trillion, one hundred eleven billion, two hundred two million, one hundred two thousand, twelve".