12121102202201 has 4 divisors (see below), whose sum is σ = 12121370040192. Its totient is φ = 12120834364212.

The previous prime is 12121102202191. The next prime is 12121102202243. The reversal of 12121102202201 is 10220220112121.

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 12121102202201 - 2²² = 12121098007897 is a prime.

It is a super-2 number, since 2×12121102202201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12121102202201.

It is not an unprimeable number, because it can be changed into a prime (12121102202801) 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, 133851101 + ... + 133941626.

It is an arithmetic number, because the mean of its divisors is an integer number (3030342510048).

Almost surely, 2^{12121102202201} is an apocalyptic number.

It is an amenable number.

12121102202201 is a deficient number, since it is larger than the sum of its proper divisors (267837991).

12121102202201 is an equidigital number, since it uses as much as digits as its factorization.

12121102202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267837990.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12121102202201 its reverse (10220220112121), we get a palindrome (22341322314322).

The spelling of 12121102202201 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, two hundred two thousand, two hundred one".