12021021020002 has 16 divisors (see below), whose sum is σ = 18259972185600. Its totient is φ = 5934365236800.

The previous prime is 12021021019967. The next prime is 12021021020011. The reversal of 12021021020002 is 20002012012021.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 16905399 + ... + 17602117.

It is an arithmetic number, because the mean of its divisors is an integer number (1141248261600).

Almost surely, 2^{12021021020002} is an apocalyptic number.

12021021020002 is a deficient number, since it is larger than the sum of its proper divisors (6238951165598).

12021021020002 is a wasteful number, since it uses less digits than its factorization.

12021021020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806001.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12021021020002 its reverse (20002012012021), we get a palindrome (32023033032023).

The spelling of 12021021020002 in words is "twelve trillion, twenty-one billion, twenty-one million, twenty thousand, two".