3201022221 has 4 divisors (see below), whose sum is σ = 4268029632. Its totient is φ = 2134014812.

The previous prime is 3201022193. The next prime is 3201022229. The reversal of 3201022221 is 1222201023.

It is a happy number.

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 3201022221 - 2²⁷ = 3066804493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3201022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201022229) 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, 533503701 + ... + 533503706.

It is an arithmetic number, because the mean of its divisors is an integer number (1067007408).

Almost surely, 2^3201022221 is an apocalyptic number.

It is an amenable number.

3201022221 is a deficient number, since it is larger than the sum of its proper divisors (1067007411).

3201022221 is a wasteful number, since it uses less digits than its factorization.

3201022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067007410.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3201022221 is about 56577.5770159875. The cubic root of 3201022221 is about 1473.7694950160.

Adding to 3201022221 its reverse (1222201023), we get a palindrome (4423223244).

The spelling of 3201022221 in words is "three billion, two hundred one million, twenty-two thousand, two hundred twenty-one".