1001111001112 has 16 divisors (see below), whose sum is σ = 1877266036800. Its totient is φ = 500506724640.

The previous prime is 1001111001067. The next prime is 1001111001113. The reversal of 1001111001112 is 2111001111001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001111001113) by changing a digit.

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, 6009687 + ... + 6174022.

It is an arithmetic number, because the mean of its divisors is an integer number (117329127300).

Almost surely, 2^{1001111001112} is an apocalyptic number.

It is an amenable number.

1001111001112 is a deficient number, since it is larger than the sum of its proper divisors (876155035688).

1001111001112 is a wasteful number, since it uses less digits than its factorization.

1001111001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12193986 (or 12193982 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1001111001112 its reverse (2111001111001), we get a palindrome (3112112112113).

The spelling of 1001111001112 in words is "one trillion, one billion, one hundred eleven million, one thousand, one hundred twelve".