12331001210221 has 4 divisors (see below), whose sum is σ = 12337380416092. Its totient is φ = 12324622004352.

The previous prime is 12331001210201. The next prime is 12331001210279. The reversal of 12331001210221 is 12201210013321.

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 6903172957321 + 5427828252900 = 2627389^2 + 2329770^2 .

It is a cyclic number.

It is not a de Polignac number, because 12331001210221 - 2³⁵ = 12296641471853 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 (12331001210201) 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, 3189600036 + ... + 3189603901.

It is an arithmetic number, because the mean of its divisors is an integer number (3084345104023).

Almost surely, 2^{12331001210221} is an apocalyptic number.

It is an amenable number.

12331001210221 is a deficient number, since it is larger than the sum of its proper divisors (6379205871).

12331001210221 is an equidigital number, since it uses as much as digits as its factorization.

12331001210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379205870.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12331001210221 its reverse (12201210013321), we get a palindrome (24532211223542).

The spelling of 12331001210221 in words is "twelve trillion, three hundred thirty-one billion, one million, two hundred ten thousand, two hundred twenty-one".