1212112112012 has 12 divisors (see below), whose sum is σ = 2123253619536. Its totient is φ = 605468220720.

The previous prime is 1212112111999. The next prime is 1212112112033. The reversal of 1212112112012 is 2102112112121.

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 3 ways as a sum of consecutive naturals, for example, 146954183 + ... + 146962430.

It is an arithmetic number, because the mean of its divisors is an integer number (176937801628).

Almost surely, 2^{1212112112012} is an apocalyptic number.

It is an amenable number.

1212112112012 is a deficient number, since it is larger than the sum of its proper divisors (911141507524).

1212112112012 is a wasteful number, since it uses less digits than its factorization.

1212112112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293917648 (or 293917646 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1212112112012 its reverse (2102112112121), we get a palindrome (3314224224133).

The spelling of 1212112112012 in words is "one trillion, two hundred twelve billion, one hundred twelve million, one hundred twelve thousand, twelve".