332232221 has 2 divisors, whose sum is σ = 332232222. Its totient is φ = 332232220.

The previous prime is 332232211. The next prime is 332232247. The reversal of 332232221 is 122232233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326524900 + 5707321 = 18070^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 332232221 - 2¹⁰ = 332231197 is a prime.

It is a super-2 number, since 2×332232221² = 220756497341185682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 332232193 and 332232202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332232211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166116110 + 166116111.

It is an arithmetic number, because the mean of its divisors is an integer number (166116111).

Almost surely, 2^332232221 is an apocalyptic number.

It is an amenable number.

332232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

332232221 is an equidigital number, since it uses as much as digits as its factorization.

332232221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 20.

The square root of 332232221 is about 18227.2384359233. The cubic root of 332232221 is about 692.5969634891.

Adding to 332232221 its reverse (122232233), we get a palindrome (454464454).

The spelling of 332232221 in words is "three hundred thirty-two million, two hundred thirty-two thousand, two hundred twenty-one".