12021110221012 has 24 divisors (see below), whose sum is σ = 21049833047040. Its totient is φ = 6006873169440.

The previous prime is 12021110221009. The next prime is 12021110221049. The reversal of 12021110221012 is 21012201112021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51563613 + ... + 51796219.

It is an arithmetic number, because the mean of its divisors is an integer number (877076376960).

Almost surely, 2^{12021110221012} is an apocalyptic number.

It is an amenable number.

12021110221012 is a deficient number, since it is larger than the sum of its proper divisors (9028722826028).

12021110221012 is a wasteful number, since it uses less digits than its factorization.

12021110221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240471 (or 240469 counting only the distinct ones).

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

Adding to 12021110221012 its reverse (21012201112021), we get a palindrome (33033311333033).

The spelling of 12021110221012 in words is "twelve trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, twelve".