12205042113 has 16 divisors (see below), whose sum is σ = 17776276416. Its totient is φ = 7387208640.

The previous prime is 12205042099. The next prime is 12205042123. The reversal of 12205042113 is 31124050221.

It is not a de Polignac number, because 12205042113 - 2¹⁸ = 12204779969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12205042113.

It is not an unprimeable number, because it can be changed into a prime (12205042123) 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, 219306 + ... + 269267.

It is an arithmetic number, because the mean of its divisors is an integer number (1111017276).

Almost surely, 2^12205042113 is an apocalyptic number.

It is an amenable number.

12205042113 is a deficient number, since it is larger than the sum of its proper divisors (5571234303).

12205042113 is a wasteful number, since it uses less digits than its factorization.

12205042113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489344.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 12205042113 its reverse (31124050221), we get a palindrome (43329092334).

The spelling of 12205042113 in words is "twelve billion, two hundred five million, forty-two thousand, one hundred thirteen".