12201134321 has 4 divisors (see below), whose sum is σ = 12201658944. Its totient is φ = 12200609700.

The previous prime is 12201134317. The next prime is 12201134327. The reversal of 12201134321 is 12343110221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12201134321 - 2² = 12201134317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12201134293 and 12201134302.

It is not an unprimeable number, because it can be changed into a prime (12201134327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225725 + ... + 274506.

It is an arithmetic number, because the mean of its divisors is an integer number (3050414736).

Almost surely, 2^12201134321 is an apocalyptic number.

It is an amenable number.

12201134321 is a deficient number, since it is larger than the sum of its proper divisors (524623).

12201134321 is an equidigital number, since it uses as much as digits as its factorization.

12201134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524622.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12201134321 its reverse (12343110221), we get a palindrome (24544244542).

The spelling of 12201134321 in words is "twelve billion, two hundred one million, one hundred thirty-four thousand, three hundred twenty-one".