12205452515 has 16 divisors (see below), whose sum is σ = 15927246432. Its totient is φ = 8941607424.

The previous prime is 12205452509. The next prime is 12205452547. The reversal of 12205452515 is 51525450221.

It is a happy number.

12205452515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12205452515 - 2¹⁰ = 12205451491 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1937309 + ... + 1943598.

It is an arithmetic number, because the mean of its divisors is an integer number (995452902).

Almost surely, 2^12205452515 is an apocalyptic number.

12205452515 is a deficient number, since it is larger than the sum of its proper divisors (3721793917).

12205452515 is a wasteful number, since it uses less digits than its factorization.

12205452515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880966.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 12205452515 in words is "twelve billion, two hundred five million, four hundred fifty-two thousand, five hundred fifteen".