12215570206 has 8 divisors (see below), whose sum is σ = 20940977520. Its totient is φ = 5235244368.

The previous prime is 12215570141. The next prime is 12215570281. The reversal of 12215570206 is 60207551221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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, 436270351 + ... + 436270378.

It is an arithmetic number, because the mean of its divisors is an integer number (2617622190).

Almost surely, 2^12215570206 is an apocalyptic number.

12215570206 is a deficient number, since it is larger than the sum of its proper divisors (8725407314).

12215570206 is an equidigital number, since it uses as much as digits as its factorization.

12215570206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872540738.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 12215570206 in words is "twelve billion, two hundred fifteen million, five hundred seventy thousand, two hundred six".