12102221231201 has 4 divisors (see below), whose sum is σ = 12115137156612. Its totient is φ = 12089305305792.

The previous prime is 12102221231131. The next prime is 12102221231209. The reversal of 12102221231201 is 10213212220121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3420058435600 + 8682162795601 = 1849340^2 + 2946551^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102221231201 - 2³⁰ = 12101147489377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102221231209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6457961300 + ... + 6457963173.

It is an arithmetic number, because the mean of its divisors is an integer number (3028784289153).

Almost surely, 2^{12102221231201} is an apocalyptic number.

It is an amenable number.

12102221231201 is a deficient number, since it is larger than the sum of its proper divisors (12915925411).

12102221231201 is an equidigital number, since it uses as much as digits as its factorization.

12102221231201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12915925410.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12102221231201 its reverse (10213212220121), we get a palindrome (22315433451322).

The spelling of 12102221231201 in words is "twelve trillion, one hundred two billion, two hundred twenty-one million, two hundred thirty-one thousand, two hundred one".