3242320221 has 16 divisors (see below), whose sum is σ = 5061184128. Its totient is φ = 1807564800.

The previous prime is 3242320183. The next prime is 3242320231. The reversal of 3242320221 is 1220232423.

It is not a de Polignac number, because 3242320221 - 2⁷ = 3242320093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3242320231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882020 + ... + 1883741.

It is an arithmetic number, because the mean of its divisors is an integer number (316324008).

Almost surely, 2^3242320221 is an apocalyptic number.

It is an amenable number.

3242320221 is a deficient number, since it is larger than the sum of its proper divisors (1818863907).

3242320221 is a wasteful number, since it uses less digits than its factorization.

3242320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765812.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3242320221 is about 56941.3752995131. The cubic root of 3242320221 is about 1480.0803798869.

Adding to 3242320221 its reverse (1220232423), we get a palindrome (4462552644).

The spelling of 3242320221 in words is "three billion, two hundred forty-two million, three hundred twenty thousand, two hundred twenty-one".