12159223105 has 4 divisors (see below), whose sum is σ = 14591067732. Its totient is φ = 9727378480.

The previous prime is 12159223099. The next prime is 12159223151. The reversal of 12159223105 is 50132295121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8524459584 + 3634763521 = 92328^2 + 60289^2 .

It is not a de Polignac number, because 12159223105 - 2¹³ = 12159214913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215922306 + ... + 1215922315.

It is an arithmetic number, because the mean of its divisors is an integer number (3647766933).

Almost surely, 2^12159223105 is an apocalyptic number.

It is an amenable number.

12159223105 is a deficient number, since it is larger than the sum of its proper divisors (2431844627).

12159223105 is an equidigital number, since it uses as much as digits as its factorization.

12159223105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431844626.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 12159223105 in words is "twelve billion, one hundred fifty-nine million, two hundred twenty-three thousand, one hundred five".