201111110012 has 12 divisors (see below), whose sum is σ = 351947841000. Its totient is φ = 100554584016.

The previous prime is 201111109999. The next prime is 201111110069. The reversal of 201111110012 is 210011111102.

It is a junction number, because it is equal to n+sod(n) for n = 201111109975 and 201111110002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431123 + ... + 766869.

It is an arithmetic number, because the mean of its divisors is an integer number (29328986750).

Almost surely, 2^201111110012 is an apocalyptic number.

It is an amenable number.

201111110012 is a deficient number, since it is larger than the sum of its proper divisors (150836730988).

201111110012 is a wasteful number, since it uses less digits than its factorization.

201111110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485500 (or 485498 counting only the distinct ones).

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

Adding to 201111110012 its reverse (210011111102), we get a palindrome (411122221114).

The spelling of 201111110012 in words is "two hundred one billion, one hundred eleven million, one hundred ten thousand, twelve".