12000221999 has 8 divisors (see below), whose sum is σ = 12322920960. Its totient is φ = 11681089056.

The previous prime is 12000221983. The next prime is 12000222037. The reversal of 12000221999 is 99912200021.

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

It is a cyclic number.

It is not a de Polignac number, because 12000221999 - 2⁴ = 12000221983 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 (12000221099) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 884684 + ... + 898145.

It is an arithmetic number, because the mean of its divisors is an integer number (1540365120).

Almost surely, 2^12000221999 is an apocalyptic number.

12000221999 is a deficient number, since it is larger than the sum of its proper divisors (322698961).

12000221999 is a wasteful number, since it uses less digits than its factorization.

12000221999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783009.

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

It can be divided in two parts, 1200022 and 1999, that added together give a palindrome (1202021).

The spelling of 12000221999 in words is "twelve billion, two hundred twenty-one thousand, nine hundred ninety-nine".