3244131101221 has 4 divisors (see below), whose sum is σ = 3244173445132. Its totient is φ = 3244088757312.

The previous prime is 3244131101111. The next prime is 3244131101227. The reversal of 3244131101221 is 1221011314423.

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 630056525121 + 2614074576100 = 793761^2 + 1616810^2 .

It is a cyclic number.

It is not a de Polignac number, because 3244131101221 - 2⁷ = 3244131101093 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 (3244131101227) 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, 21056826 + ... + 21210331.

It is an arithmetic number, because the mean of its divisors is an integer number (811043361283).

Almost surely, 2^{3244131101221} is an apocalyptic number.

It is an amenable number.

3244131101221 is a deficient number, since it is larger than the sum of its proper divisors (42343911).

3244131101221 is an equidigital number, since it uses as much as digits as its factorization.

3244131101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42343910.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 3244131101221 its reverse (1221011314423), we get a palindrome (4465142415644).

The spelling of 3244131101221 in words is "three trillion, two hundred forty-four billion, one hundred thirty-one million, one hundred one thousand, two hundred twenty-one".