12002021999 has 16 divisors (see below), whose sum is σ = 13334280480. Its totient is φ = 10710672000.

The previous prime is 12002021971. The next prime is 12002022029. The reversal of 12002021999 is 99912020021.

12002021999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12002021999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002021599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323969 + ... + 359109.

It is an arithmetic number, because the mean of its divisors is an integer number (833392530).

Almost surely, 2^12002021999 is an apocalyptic number.

12002021999 is a deficient number, since it is larger than the sum of its proper divisors (1332258481).

12002021999 is a wasteful number, since it uses less digits than its factorization.

12002021999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35722.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 12002021999 in words is "twelve billion, two million, twenty-one thousand, nine hundred ninety-nine".