1111211212012 has 24 divisors (see below), whose sum is σ = 2121434496720. Its totient is φ = 505088559360.

The previous prime is 1111211212009. The next prime is 1111211212043. The reversal of 1111211212012 is 2102121121111.

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, 3783648 + ... + 4066744.

It is an arithmetic number, because the mean of its divisors is an integer number (88393104030).

Almost surely, 2^{1111211212012} is an apocalyptic number.

It is an amenable number.

1111211212012 is a deficient number, since it is larger than the sum of its proper divisors (1010223284708).

1111211212012 is a wasteful number, since it uses less digits than its factorization.

1111211212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372321 (or 372319 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1111211212012 its reverse (2102121121111), we get a palindrome (3213332333123).

Subtracting 1111211212012 from its reverse (2102121121111), we obtain a palindrome (990909909099).

The spelling of 1111211212012 in words is "one trillion, one hundred eleven billion, two hundred eleven million, two hundred twelve thousand, twelve".