12004345215 has 12 divisors (see below), whose sum is σ = 20807531784. Its totient is φ = 6402317424.

The previous prime is 12004345207. The next prime is 12004345253. The reversal of 12004345215 is 51254340021.

12004345215 is a `hidden beast` number, since 1 + 200 + 4 + 3 + 452 + 1 + 5 = 666.

It is not a de Polignac number, because 12004345215 - 2³ = 12004345207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133381569 + ... + 133381658.

It is an arithmetic number, because the mean of its divisors is an integer number (1733960982).

Almost surely, 2^12004345215 is an apocalyptic number.

12004345215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12004345215 is a deficient number, since it is larger than the sum of its proper divisors (8803186569).

12004345215 is a wasteful number, since it uses less digits than its factorization.

12004345215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266763238 (or 266763235 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 12004345215 its reverse (51254340021), we get a palindrome (63258685236).

The spelling of 12004345215 in words is "twelve billion, four million, three hundred forty-five thousand, two hundred fifteen".