12205261366 has 8 divisors (see below), whose sum is σ = 18328079880. Its totient is φ = 6095901408.

The previous prime is 12205261361. The next prime is 12205261399. The reversal of 12205261366 is 66316250221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205261361) 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, 3362371 + ... + 3365998.

It is an arithmetic number, because the mean of its divisors is an integer number (2291009985).

Almost surely, 2^12205261366 is an apocalyptic number.

12205261366 is a deficient number, since it is larger than the sum of its proper divisors (6122818514).

12205261366 is an equidigital number, since it uses as much as digits as its factorization.

12205261366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729278.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 12205261366 in words is "twelve billion, two hundred five million, two hundred sixty-one thousand, three hundred sixty-six".