12541272205 has 32 divisors (see below), whose sum is σ = 18860375808. Its totient is φ = 7777382400.

The previous prime is 12541272197. The next prime is 12541272209. The reversal of 12541272205 is 50227214521.

It is a happy number.

It is not a de Polignac number, because 12541272205 - 2³ = 12541272197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541272209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10086 + ... + 158695.

It is an arithmetic number, because the mean of its divisors is an integer number (589386744).

Almost surely, 2^12541272205 is an apocalyptic number.

It is an amenable number.

12541272205 is a deficient number, since it is larger than the sum of its proper divisors (6319103603).

12541272205 is a wasteful number, since it uses less digits than its factorization.

12541272205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168997.

The product of its (nonzero) digits is 11200, while the sum is 31.

Adding to 12541272205 its reverse (50227214521), we get a palindrome (62768486726).

The spelling of 12541272205 in words is "twelve billion, five hundred forty-one million, two hundred seventy-two thousand, two hundred five".