12641331201 has 16 divisors (see below), whose sum is σ = 16975492800. Its totient is φ = 8367410880.

The previous prime is 12641331193. The next prime is 12641331203. The reversal of 12641331201 is 10213314621.

It is a happy number.

It is not a de Polignac number, because 12641331201 - 2³ = 12641331193 is a prime.

It is a super-2 number, since 2×12641331201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12641331203) 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, 1409391 + ... + 1418331.

It is an arithmetic number, because the mean of its divisors is an integer number (1060968300).

Almost surely, 2^12641331201 is an apocalyptic number.

It is an amenable number.

12641331201 is a deficient number, since it is larger than the sum of its proper divisors (4334161599).

12641331201 is a wasteful number, since it uses less digits than its factorization.

12641331201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12641331201 its reverse (10213314621), we get a palindrome (22854645822).

The spelling of 12641331201 in words is "twelve billion, six hundred forty-one million, three hundred thirty-one thousand, two hundred one".