3243221031021 has 8 divisors (see below), whose sum is σ = 4385200267584. Its totient is φ = 2131694574240.

The previous prime is 3243221031007. The next prime is 3243221031059. The reversal of 3243221031021 is 1201301223423.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3243221031021 - 2¹⁸ = 3243220768877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3243221030982 and 3243221031000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243221131021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7613194696 + ... + 7613195121.

It is an arithmetic number, because the mean of its divisors is an integer number (548150033448).

Almost surely, 2^{3243221031021} is an apocalyptic number.

It is an amenable number.

3243221031021 is a deficient number, since it is larger than the sum of its proper divisors (1141979236563).

3243221031021 is a wasteful number, since it uses less digits than its factorization.

3243221031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15226389891.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 3243221031021 its reverse (1201301223423), we get a palindrome (4444522254444).

The spelling of 3243221031021 in words is "three trillion, two hundred forty-three billion, two hundred twenty-one million, thirty-one thousand, twenty-one".