2012110111100 has 36 divisors (see below), whose sum is σ = 4623118882704. Its totient is φ = 757500276480.

The previous prime is 2012110111009. The next prime is 2012110111147. The reversal of 2012110111100 is 11110112102.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 591795392 + ... + 591798791.

It is an arithmetic number, because the mean of its divisors is an integer number (128419968964).

Almost surely, 2^{2012110111100} is an apocalyptic number.

2012110111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012110111100 is an abundant number, since it is smaller than the sum of its proper divisors (2611008771604).

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

2012110111100 is a wasteful number, since it uses less digits than its factorization.

2012110111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183594214 (or 1183594207 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2012110111100 its reverse (11110112102), we get a palindrome (2023220223202).

The spelling of 2012110111100 in words is "two trillion, twelve billion, one hundred ten million, one hundred eleven thousand, one hundred".