3320421230221 has 4 divisors (see below), whose sum is σ = 3342410774944. Its totient is φ = 3298431685500.

The previous prime is 3320421230219. The next prime is 3320421230263. The reversal of 3320421230221 is 1220321240233.

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 a cyclic number.

It is not a de Polignac number, because 3320421230221 - 2¹ = 3320421230219 is a prime.

It is a super-2 number, since 2×3320421230221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3320421236221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10994772135 + ... + 10994772436.

It is an arithmetic number, because the mean of its divisors is an integer number (835602693736).

Almost surely, 2^{3320421230221} is an apocalyptic number.

It is an amenable number.

3320421230221 is a deficient number, since it is larger than the sum of its proper divisors (21989544723).

3320421230221 is a wasteful number, since it uses less digits than its factorization.

3320421230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21989544722.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 3320421230221 its reverse (1220321240233), we get a palindrome (4540742470454).

The spelling of 3320421230221 in words is "three trillion, three hundred twenty billion, four hundred twenty-one million, two hundred thirty thousand, two hundred twenty-one".