12041221599 has 12 divisors (see below), whose sum is σ = 18974046312. Its totient is φ = 7297710000.

The previous prime is 12041221589. The next prime is 12041221613. The reversal of 12041221599 is 99512214021.

12041221599 is a `hidden beast` number, since 1 + 2 + 0 + 41 + 2 + 21 + 599 = 666.

It is not a de Polignac number, because 12041221599 - 2⁷ = 12041221471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12041221589) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 60814152 + ... + 60814349.

It is an arithmetic number, because the mean of its divisors is an integer number (1581170526).

Almost surely, 2^12041221599 is an apocalyptic number.

12041221599 is a deficient number, since it is larger than the sum of its proper divisors (6932824713).

12041221599 is a wasteful number, since it uses less digits than its factorization.

12041221599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121628518 (or 121628515 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 12041221599 in words is "twelve billion, forty-one million, two hundred twenty-one thousand, five hundred ninety-nine".