12011021122012 has 72 divisors (see below), whose sum is σ = 24464341923840. Its totient is φ = 5138100633600.

The previous prime is 12011021121943. The next prime is 12011021122039. The reversal of 12011021122012 is 21022112011021.

It is a super-3 number, since 3×12011021122012³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 189533212 + ... + 189596572.

It is an arithmetic number, because the mean of its divisors is an integer number (339782526720).

Almost surely, 2^{12011021122012} is an apocalyptic number.

It is an amenable number.

12011021122012 is an abundant number, since it is smaller than the sum of its proper divisors (12453320801828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011021122012 is a wasteful number, since it uses less digits than its factorization.

12011021122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86443 (or 86430 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12011021122012 its reverse (21022112011021), we get a palindrome (33033133133033).

The spelling of 12011021122012 in words is "twelve trillion, eleven billion, twenty-one million, one hundred twenty-two thousand, twelve".