12205004267 has 2 divisors, whose sum is σ = 12205004268. Its totient is φ = 12205004266.

The previous prime is 12205004239. The next prime is 12205004333. The reversal of 12205004267 is 76240050221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12205004267 - 2⁸ = 12205004011 is a prime.

It is not a weakly prime, because it can be changed into another prime (12205007267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102502133 + 6102502134.

It is an arithmetic number, because the mean of its divisors is an integer number (6102502134).

Almost surely, 2^12205004267 is an apocalyptic number.

12205004267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12205004267 is an equidigital number, since it uses as much as digits as its factorization.

12205004267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 12205004267 its reverse (76240050221), we get a palindrome (88445054488).

The spelling of 12205004267 in words is "twelve billion, two hundred five million, four thousand, two hundred sixty-seven".