1200100111112 has 16 divisors (see below), whose sum is σ = 2571643095360. Its totient is φ = 514328619024.

The previous prime is 1200100111039. The next prime is 1200100111127. The reversal of 1200100111112 is 2111110010021.

It is a junction number, because it is equal to n+sod(n) for n = 1200100111093 and 1200100111102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10715179508 + ... + 10715179619.

It is an arithmetic number, because the mean of its divisors is an integer number (160727693460).

Almost surely, 2^{1200100111112} is an apocalyptic number.

It is an amenable number.

1200100111112 is an abundant number, since it is smaller than the sum of its proper divisors (1371542984248).

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

1200100111112 is a wasteful number, since it uses less digits than its factorization.

1200100111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21430359140 (or 21430359136 counting only the distinct ones).

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

Adding to 1200100111112 its reverse (2111110010021), we get a palindrome (3311210121133).

The spelling of 1200100111112 in words is "one trillion, two hundred billion, one hundred million, one hundred eleven thousand, one hundred twelve".