12021002213312 has 28 divisors (see below), whose sum is σ = 24891314368656. Its totient is φ = 5749174970880.

The previous prime is 12021002213287. The next prime is 12021002213327. The reversal of 12021002213312 is 21331220012021.

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 3 ways as a sum of consecutive naturals, for example, 4083219389 + ... + 4083222332.

Almost surely, 2^{12021002213312} is an apocalyptic number.

It is an amenable number.

12021002213312 is an abundant number, since it is smaller than the sum of its proper divisors (12870312155344).

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

12021002213312 is an equidigital number, since it uses as much as digits as its factorization.

12021002213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166441756 (or 8166441746 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12021002213312 its reverse (21331220012021), we get a palindrome (33352222225333).

The spelling of 12021002213312 in words is "twelve trillion, twenty-one billion, two million, two hundred thirteen thousand, three hundred twelve".