12001220222012 has 48 divisors (see below), whose sum is σ = 24160463712000. Its totient is φ = 5109574950144.

The previous prime is 12001220221997. The next prime is 12001220222071. The reversal of 12001220222012 is 21022202210021.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 3870539 + ... + 6243677.

It is an arithmetic number, because the mean of its divisors is an integer number (503342994000).

Almost surely, 2^{12001220222012} is an apocalyptic number.

It is an amenable number.

12001220222012 is an abundant number, since it is smaller than the sum of its proper divisors (12159243489988).

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

12001220222012 is a wasteful number, since it uses less digits than its factorization.

12001220222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374338 (or 2374336 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12001220222012 its reverse (21022202210021), we get a palindrome (33023422432033).

The spelling of 12001220222012 in words is "twelve trillion, one billion, two hundred twenty million, two hundred twenty-two thousand, twelve".