350330221 has 2 divisors, whose sum is σ = 350330222. Its totient is φ = 350330220.

The previous prime is 350330209. The next prime is 350330231. The reversal of 350330221 is 122033053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287302500 + 63027721 = 16950^2 + 7939^2 .

It is an emirp because it is prime and its reverse (122033053) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 350330221 - 2¹⁷ = 350199149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (350330231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175165110 + 175165111.

It is an arithmetic number, because the mean of its divisors is an integer number (175165111).

Almost surely, 2^350330221 is an apocalyptic number.

It is an amenable number.

350330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

350330221 is an equidigital number, since it uses as much as digits as its factorization.

350330221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 350330221 is about 18717.1103806116. The cubic root of 350330221 is about 704.9514384001.

Adding to 350330221 its reverse (122033053), we get a palindrome (472363274).

The spelling of 350330221 in words is "three hundred fifty million, three hundred thirty thousand, two hundred twenty-one".