12315422105 has 24 divisors (see below), whose sum is σ = 17938780992. Its totient is φ = 8077689312.

The previous prime is 12315422099. The next prime is 12315422113. The reversal of 12315422105 is 50122451321.

It is not a de Polignac number, because 12315422105 - 2¹⁴ = 12315405721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1087127 + ... + 1098396.

It is an arithmetic number, because the mean of its divisors is an integer number (747449208).

Almost surely, 2^12315422105 is an apocalyptic number.

It is an amenable number.

12315422105 is a deficient number, since it is larger than the sum of its proper divisors (5623358887).

12315422105 is a wasteful number, since it uses less digits than its factorization.

12315422105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185565 (or 2185558 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12315422105 its reverse (50122451321), we get a palindrome (62437873426).

The spelling of 12315422105 in words is "twelve billion, three hundred fifteen million, four hundred twenty-two thousand, one hundred five".