12221102212201 has 4 divisors (see below), whose sum is σ = 12221173647504. Its totient is φ = 12221030776900.

The previous prime is 12221102212199. The next prime is 12221102212213. The reversal of 12221102212201 is 10221220112221.

12221102212201 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.

It is a cyclic number.

It is not a de Polignac number, because 12221102212201 - 2¹ = 12221102212199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221102212261) 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, 35460415 + ... + 35803396.

It is an arithmetic number, because the mean of its divisors is an integer number (3055293411876).

Almost surely, 2^{12221102212201} is an apocalyptic number.

It is an amenable number.

12221102212201 is a deficient number, since it is larger than the sum of its proper divisors (71435303).

12221102212201 is an equidigital number, since it uses as much as digits as its factorization.

12221102212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71435302.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221102212201 its reverse (10221220112221), we get a palindrome (22442322324422).

The spelling of 12221102212201 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, two hundred twelve thousand, two hundred one".