350850221 has 2 divisors, whose sum is σ = 350850222. Its totient is φ = 350850220.

The previous prime is 350850127. The next prime is 350850251. The reversal of 350850221 is 122058053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229189321 + 121660900 = 15139^2 + 11030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-350850221 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 (350850251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175425110 + 175425111.

It is an arithmetic number, because the mean of its divisors is an integer number (175425111).

Almost surely, 2^350850221 is an apocalyptic number.

It is an amenable number.

350850221 is a deficient number, since it is larger than the sum of its proper divisors (1).

350850221 is an equidigital number, since it uses as much as digits as its factorization.

350850221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 350850221 is about 18730.9962628793. The cubic root of 350850221 is about 705.3000556996.

The spelling of 350850221 in words is "three hundred fifty million, eight hundred fifty thousand, two hundred twenty-one".