12215024863 has 4 divisors (see below), whose sum is σ = 12215578048. Its totient is φ = 12214471680.

The previous prime is 12215024819. The next prime is 12215024867. The reversal of 12215024863 is 36842051221.

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

It is a cyclic number.

It is not a de Polignac number, because 12215024863 - 2¹⁷ = 12214893791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215024867) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 242031 + ... + 288112.

It is an arithmetic number, because the mean of its divisors is an integer number (3053894512).

Almost surely, 2^12215024863 is an apocalyptic number.

12215024863 is a deficient number, since it is larger than the sum of its proper divisors (553185).

12215024863 is an equidigital number, since it uses as much as digits as its factorization.

12215024863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553184.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 12215024863 in words is "twelve billion, two hundred fifteen million, twenty-four thousand, eight hundred sixty-three".