12212122202201 has 4 divisors (see below), whose sum is σ = 12338020369332. Its totient is φ = 12086224035072.

The previous prime is 12212122202141. The next prime is 12212122202213. The reversal of 12212122202201 is 10220222121221.

12212122202201 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.

It can be written as a sum of positive squares in 2 ways, for example, as 8968683290176 + 3243438912025 = 2994776^2 + 1800955^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212122202201 - 2³⁸ = 11937244295257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212122202101) 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, 62949083420 + ... + 62949083613.

It is an arithmetic number, because the mean of its divisors is an integer number (3084505092333).

Almost surely, 2^{12212122202201} is an apocalyptic number.

It is an amenable number.

12212122202201 is a deficient number, since it is larger than the sum of its proper divisors (125898167131).

12212122202201 is an equidigital number, since it uses as much as digits as its factorization.

12212122202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125898167130.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12212122202201 its reverse (10220222121221), we get a palindrome (22432344323422).

The spelling of 12212122202201 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, two hundred two thousand, two hundred one".