12433221505 has 32 divisors (see below), whose sum is σ = 15601299840. Its totient is φ = 9503070720.

The previous prime is 12433221461. The next prime is 12433221509. The reversal of 12433221505 is 50512233421.

12433221505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12433221505 - 2³¹ = 10285737857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12433221509) 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 31 ways as a sum of consecutive naturals, for example, 11070874 + ... + 11071996.

It is an arithmetic number, because the mean of its divisors is an integer number (487540620).

Almost surely, 2^12433221505 is an apocalyptic number.

It is an amenable number.

12433221505 is a deficient number, since it is larger than the sum of its proper divisors (3168078335).

12433221505 is a wasteful number, since it uses less digits than its factorization.

12433221505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 12433221505 its reverse (50512233421), we get a palindrome (62945454926).

The spelling of 12433221505 in words is "twelve billion, four hundred thirty-three million, two hundred twenty-one thousand, five hundred five".