12201001999 has 8 divisors (see below), whose sum is σ = 12279401600. Its totient is φ = 12122645976.

The previous prime is 12201001987. The next prime is 12201002053. The reversal of 12201001999 is 99910010221.

12201001999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201001999 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 (12201001919) 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 7 ways as a sum of consecutive naturals, for example, 696652 + ... + 713950.

It is an arithmetic number, because the mean of its divisors is an integer number (1534925200).

Almost surely, 2^12201001999 is an apocalyptic number.

12201001999 is a deficient number, since it is larger than the sum of its proper divisors (78399601).

12201001999 is a wasteful number, since it uses less digits than its factorization.

12201001999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21789.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 12201001999 in words is "twelve billion, two hundred one million, one thousand, nine hundred ninety-nine".