12224431205 has 16 divisors (see below), whose sum is σ = 16918746240. Its totient is φ = 8305561152.

The previous prime is 12224431157. The next prime is 12224431211. The reversal of 12224431205 is 50213442221.

It is not a de Polignac number, because 12224431205 - 2⁸ = 12224430949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1598339 + ... + 1605968.

It is an arithmetic number, because the mean of its divisors is an integer number (1057421640).

Almost surely, 2^12224431205 is an apocalyptic number.

It is an amenable number.

12224431205 is a deficient number, since it is larger than the sum of its proper divisors (4694315035).

12224431205 is a wasteful number, since it uses less digits than its factorization.

12224431205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204428.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 12224431205 its reverse (50213442221), we get a palindrome (62437873426).

The spelling of 12224431205 in words is "twelve billion, two hundred twenty-four million, four hundred thirty-one thousand, two hundred five".