12100202303221 has 4 divisors (see below), whose sum is σ = 12100209276352. Its totient is φ = 12100195330092.

The previous prime is 12100202303191. The next prime is 12100202303243. The reversal of 12100202303221 is 12230320200121.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12100202303221 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 (12100202303251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388530 + ... + 5111596.

It is an arithmetic number, because the mean of its divisors is an integer number (3025052319088).

Almost surely, 2^{12100202303221} is an apocalyptic number.

It is an amenable number.

12100202303221 is a deficient number, since it is larger than the sum of its proper divisors (6973131).

12100202303221 is an equidigital number, since it uses as much as digits as its factorization.

12100202303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973130.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12100202303221 its reverse (12230320200121), we get a palindrome (24330522503342).

The spelling of 12100202303221 in words is "twelve trillion, one hundred billion, two hundred two million, three hundred three thousand, two hundred twenty-one".