12012020221012 has 96 divisors (see below), whose sum is σ = 25289849088000. Its totient is φ = 4883120242560.

The previous prime is 12012020220973. The next prime is 12012020221027. The reversal of 12012020221012 is 21012202021021.

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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75567337 + ... + 75726127.

It is an arithmetic number, because the mean of its divisors is an integer number (263435928000).

Almost surely, 2^{12012020221012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012020221012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12644924544000).

12012020221012 is an abundant number, since it is smaller than the sum of its proper divisors (13277828866988).

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

12012020221012 is a wasteful number, since it uses less digits than its factorization.

12012020221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160469 (or 160467 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12012020221012 its reverse (21012202021021), we get a palindrome (33024222242033).

The spelling of 12012020221012 in words is "twelve trillion, twelve billion, twenty million, two hundred twenty-one thousand, twelve".