332030221 has 4 divisors (see below), whose sum is σ = 332356444. Its totient is φ = 331704000.

The previous prime is 332030189. The next prime is 332030249. The reversal of 332030221 is 122030233.

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 175430025 + 156600196 = 13245^2 + 12514^2 .

It is a cyclic number.

It is not a de Polignac number, because 332030221 - 2⁵ = 332030189 is a prime.

It is a super-2 number, since 2×332030221² = 220488135314617682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 332030195 and 332030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332030291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161580 + ... + 163621.

It is an arithmetic number, because the mean of its divisors is an integer number (83089111).

Almost surely, 2^332030221 is an apocalyptic number.

It is an amenable number.

332030221 is a deficient number, since it is larger than the sum of its proper divisors (326223).

332030221 is a wasteful number, since it uses less digits than its factorization.

332030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326222.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 332030221 is about 18221.6964358426. The cubic root of 332030221 is about 692.4565667608.

Adding to 332030221 its reverse (122030233), we get a palindrome (454060454).

The spelling of 332030221 in words is "three hundred thirty-two million, thirty thousand, two hundred twenty-one".