12201211101 has 4 divisors (see below), whose sum is σ = 16268281472. Its totient is φ = 8134140732.

The previous prime is 12201211007. The next prime is 12201211111. The reversal of 12201211101 is 10111210221.

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 not a de Polignac number, because 12201211101 - 2⁹ = 12201210589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201211111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033535181 + ... + 2033535186.

It is an arithmetic number, because the mean of its divisors is an integer number (4067070368).

Almost surely, 2^12201211101 is an apocalyptic number.

It is an amenable number.

12201211101 is a deficient number, since it is larger than the sum of its proper divisors (4067070371).

12201211101 is an equidigital number, since it uses as much as digits as its factorization.

12201211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067070370.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12201211101 its reverse (10111210221), we get a palindrome (22312421322).

The spelling of 12201211101 in words is "twelve billion, two hundred one million, two hundred eleven thousand, one hundred one".