325214221 has 2 divisors, whose sum is σ = 325214222. Its totient is φ = 325214220.

The previous prime is 325214191. The next prime is 325214237. The reversal of 325214221 is 122412523.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168714121 + 156500100 = 12989^2 + 12510^2 .

It is an emirp because it is prime and its reverse (122412523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325214221 - 2⁵ = 325214189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 325214192 and 325214201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325214251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162607110 + 162607111.

It is an arithmetic number, because the mean of its divisors is an integer number (162607111).

Almost surely, 2^325214221 is an apocalyptic number.

It is an amenable number.

325214221 is a deficient number, since it is larger than the sum of its proper divisors (1).

325214221 is an equidigital number, since it uses as much as digits as its factorization.

325214221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 325214221 is about 18033.6968201198. The cubic root of 325214221 is about 687.6854611938.

Adding to 325214221 its reverse (122412523), we get a palindrome (447626744).

The spelling of 325214221 in words is "three hundred twenty-five million, two hundred fourteen thousand, two hundred twenty-one".