12322621605 has 16 divisors (see below), whose sum is σ = 22532793984. Its totient is φ = 5633198400.

The previous prime is 12322621603. The next prime is 12322621631. The reversal of 12322621605 is 50612622321.

It is not a de Polignac number, because 12322621605 - 2¹ = 12322621603 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322621603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58679046 + ... + 58679255.

It is an arithmetic number, because the mean of its divisors is an integer number (1408299624).

Almost surely, 2^12322621605 is an apocalyptic number.

12322621605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12322621605 is a deficient number, since it is larger than the sum of its proper divisors (10210172379).

12322621605 is a wasteful number, since it uses less digits than its factorization.

12322621605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117358316.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 12322621605 in words is "twelve billion, three hundred twenty-two million, six hundred twenty-one thousand, six hundred five".