12011022212012 has 48 divisors (see below), whose sum is σ = 22364166666240. Its totient is φ = 5631688590528.

The previous prime is 12011022212003. The next prime is 12011022212053. The reversal of 12011022212012 is 21021222011021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5408189 + ... + 7298667.

It is an arithmetic number, because the mean of its divisors is an integer number (465920138880).

Almost surely, 2^{12011022212012} is an apocalyptic number.

It is an amenable number.

12011022212012 is a deficient number, since it is larger than the sum of its proper divisors (10353144454228).

12011022212012 is a wasteful number, since it uses less digits than its factorization.

12011022212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891862 (or 1891860 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12011022212012 its reverse (21021222011021), we get a palindrome (33032244223033).

The spelling of 12011022212012 in words is "twelve trillion, eleven billion, twenty-two million, two hundred twelve thousand, twelve".