1200010111112 has 32 divisors (see below), whose sum is σ = 2259682099200. Its totient is φ = 597428772864.

The previous prime is 1200010111061. The next prime is 1200010111117. The reversal of 1200010111112 is 2111110100021.

It is a junction number, because it is equal to n+sod(n) for n = 1200010111093 and 1200010111102.

It is not an unprimeable number, because it can be changed into a prime (1200010111117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20530553 + ... + 20588919.

It is an arithmetic number, because the mean of its divisors is an integer number (70615065600).

Almost surely, 2^{1200010111112} is an apocalyptic number.

It is an amenable number.

1200010111112 is a deficient number, since it is larger than the sum of its proper divisors (1059671988088).

1200010111112 is a wasteful number, since it uses less digits than its factorization.

1200010111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69365 (or 69361 counting only the distinct ones).

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

Adding to 1200010111112 its reverse (2111110100021), we get a palindrome (3311120211133).

The spelling of 1200010111112 in words is "one trillion, two hundred billion, ten million, one hundred eleven thousand, one hundred twelve".