12001222201 has 4 divisors (see below), whose sum is σ = 12015805312. Its totient is φ = 11986639092.

The previous prime is 12001222193. The next prime is 12001222223. The reversal of 12001222201 is 10222210021.

It is a happy number.

12001222201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10222210021 = 2957 ⋅3456953.

It is a cyclic number.

It is not a de Polignac number, because 12001222201 - 2³ = 12001222193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7290321 + ... + 7291966.

It is an arithmetic number, because the mean of its divisors is an integer number (3003951328).

Almost surely, 2^12001222201 is an apocalyptic number.

It is an amenable number.

12001222201 is a deficient number, since it is larger than the sum of its proper divisors (14583111).

12001222201 is an equidigital number, since it uses as much as digits as its factorization.

12001222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14583110.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12001222201 its reverse (10222210021), we get a palindrome (22223432222).

The spelling of 12001222201 in words is "twelve billion, one million, two hundred twenty-two thousand, two hundred one".