1100111111012 has 12 divisors (see below), whose sum is σ = 1925203530096. Its totient is φ = 550052959560.

The previous prime is 1100111111009. The next prime is 1100111111017. The reversal of 1100111111012 is 2101111110011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1100111110984 and 1100111111002.

It is not an unprimeable number, because it can be changed into a prime (1100111111017) 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 3 ways as a sum of consecutive naturals, for example, 551087 + ... + 1582377.

It is an arithmetic number, because the mean of its divisors is an integer number (160433627508).

Almost surely, 2^{1100111111012} is an apocalyptic number.

It is an amenable number.

1100111111012 is a deficient number, since it is larger than the sum of its proper divisors (825092419084).

1100111111012 is a wasteful number, since it uses less digits than its factorization.

1100111111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297978 (or 1297976 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1100111111012 its reverse (2101111110011), we get a palindrome (3201222221023).

The spelling of 1100111111012 in words is "one trillion, one hundred billion, one hundred eleven million, one hundred eleven thousand, twelve".