12205004266 has 32 divisors (see below), whose sum is σ = 22577280768. Its totient is φ = 4818718080.

The previous prime is 12205004239. The next prime is 12205004267. The reversal of 12205004266 is 66240050221.

It is not an unprimeable number, because it can be changed into a prime (12205004267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24886 + ... + 158206.

It is an arithmetic number, because the mean of its divisors is an integer number (705540024).

Almost surely, 2^12205004266 is an apocalyptic number.

12205004266 is a deficient number, since it is larger than the sum of its proper divisors (10372276502).

12205004266 is a wasteful number, since it uses less digits than its factorization.

12205004266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133846.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 12205004266 its reverse (66240050221), we get a palindrome (78445054487).

The spelling of 12205004266 in words is "twelve billion, two hundred five million, four thousand, two hundred sixty-six".