3220203421 has 4 divisors (see below), whose sum is σ = 3274783200. Its totient is φ = 3165623644.

The previous prime is 3220203419. The next prime is 3220203431. The reversal of 3220203421 is 1243020223.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1243020223 = 19 ⋅65422117.

It is a cyclic number.

It is not a de Polignac number, because 3220203421 - 2¹ = 3220203419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220203401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27289801 + ... + 27289918.

It is an arithmetic number, because the mean of its divisors is an integer number (818695800).

Almost surely, 2^3220203421 is an apocalyptic number.

It is an amenable number.

3220203421 is a deficient number, since it is larger than the sum of its proper divisors (54579779).

3220203421 is an equidigital number, since it uses as much as digits as its factorization.

3220203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54579778.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 3220203421 is about 56746.8362201806. The cubic root of 3220203421 is about 1476.7073472366.

Adding to 3220203421 its reverse (1243020223), we get a palindrome (4463223644).

The spelling of 3220203421 in words is "three billion, two hundred twenty million, two hundred three thousand, four hundred twenty-one".