3443221213 has 4 divisors (see below), whose sum is σ = 3443638140. Its totient is φ = 3442804288.

The previous prime is 3443221193. The next prime is 3443221217. The reversal of 3443221213 is 3121223443.

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 1300179364 + 2143041849 = 36058^2 + 46293^2 .

It is a cyclic number.

It is not a de Polignac number, because 3443221213 - 2¹³ = 3443213021 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 (3443221217) 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, 195820 + ... + 212677.

It is an arithmetic number, because the mean of its divisors is an integer number (860909535).

Almost surely, 2^3443221213 is an apocalyptic number.

It is an amenable number.

3443221213 is a deficient number, since it is larger than the sum of its proper divisors (416927).

3443221213 is an equidigital number, since it uses as much as digits as its factorization.

3443221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416926.

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

The square root of 3443221213 is about 58678.9673818482. The cubic root of 3443221213 is about 1510.0395020586.

Adding to 3443221213 its reverse (3121223443), we get a palindrome (6564444656).

The spelling of 3443221213 in words is "three billion, four hundred forty-three million, two hundred twenty-one thousand, two hundred thirteen".