332221 has 2 divisors, whose sum is σ = 332222. Its totient is φ = 332220.
The previous prime is 332219. The next prime is 332251. The reversal of 332221 is 122233.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 319225 + 12996 = 565^2 + 114^2 .
It is a cyclic number.
It is not a de Polignac number, because 332221 - 21 = 332219 is a prime.
It is a super-2 number, since 2×3322212 = 220741585682, which contains 22 as substring.
Together with 332219, it forms a pair of twin primes.
It is a nialpdrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (332201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166110 + 166111.
It is an arithmetic number, because the mean of its divisors is an integer number (166111).
2332221 is an apocalyptic number.
It is an amenable number.
332221 is a deficient number, since it is larger than the sum of its proper divisors (1).
332221 is an equidigital number, since it uses as much as digits as its factorization.
332221 is an evil number, because the sum of its binary digits is even.
The product of its digits is 72, while the sum is 13.
The square root of 332221 is about 576.3861552813. The cubic root of 332221 is about 69.2589166013.
Adding to 332221 its reverse (122233), we get a palindrome (454454).
The spelling of 332221 in words is "three hundred thirty-two thousand, two hundred twenty-one".
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