3200221 has 4 divisors (see below), whose sum is σ = 3219552. Its totient is φ = 3180892.

The previous prime is 3200213. The next prime is 3200251. The reversal of 3200221 is 1220023.

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: 1220023 = 7 ⋅174289.

It is a cyclic number.

It is not a de Polignac number, because 3200221 - 2³ = 3200213 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 3200198 and 3200207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200201) 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, 9415 + ... + 9748.

It is an arithmetic number, because the mean of its divisors is an integer number (804888).

Almost surely, 2^3200221 is an apocalyptic number.

It is an amenable number.

3200221 is a deficient number, since it is larger than the sum of its proper divisors (19331).

3200221 is a wasteful number, since it uses less digits than its factorization.

3200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19330.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 3200221 is about 1788.9161523112. The cubic root of 3200221 is about 147.3646522465.

Adding to 3200221 its reverse (1220023), we get a palindrome (4420244).

It can be divided in two parts, 320022 and 1, that added together give a palindrome (320023).

The spelling of 3200221 in words is "three million, two hundred thousand, two hundred twenty-one".