1200111100012 has 48 divisors (see below), whose sum is σ = 2295812484000. Its totient is φ = 544388648960.

The previous prime is 1200111100009. The next prime is 1200111100051. The reversal of 1200111100012 is 2100011110021.

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 15 ways as a sum of consecutive naturals, for example, 161453448 + ... + 161460880.

It is an arithmetic number, because the mean of its divisors is an integer number (47829426750).

Almost surely, 2^{1200111100012} is an apocalyptic number.

It is an amenable number.

1200111100012 is a deficient number, since it is larger than the sum of its proper divisors (1095701383988).

1200111100012 is a wasteful number, since it uses less digits than its factorization.

1200111100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14466 (or 14464 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1200111100012 its reverse (2100011110021), we get a palindrome (3300122210033).

The spelling of 1200111100012 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred thousand, twelve".