1111111211012 has 24 divisors (see below), whose sum is σ = 2129097882240. Its totient is φ = 503173033760.

The previous prime is 1111111210997. The next prime is 1111111211053. The reversal of 1111111211012 is 2101121111111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46925948 + ... + 46949619.

It is an arithmetic number, because the mean of its divisors is an integer number (88712411760).

Almost surely, 2^{1111111211012} is an apocalyptic number.

It is an amenable number.

1111111211012 is a deficient number, since it is larger than the sum of its proper divisors (1017986671228).

1111111211012 is a wasteful number, since it uses less digits than its factorization.

1111111211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93875851 (or 93875849 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 1111111211012 its reverse (2101121111111), we get a palindrome (3212232322123).

Subtracting 1111111211012 from its reverse (2101121111111), we obtain a palindrome (990009900099).

The spelling of 1111111211012 in words is "one trillion, one hundred eleven billion, one hundred eleven million, two hundred eleven thousand, twelve".