362221 has 2 divisors, whose sum is σ = 362222. Its totient is φ = 362220.

The previous prime is 362213. The next prime is 362233. The reversal of 362221 is 122263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236196 + 126025 = 486^2 + 355^2 .

It is an emirp because it is prime and its reverse (122263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 362221 - 2³ = 362213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 362195 and 362204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (362281) 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, 181110 + 181111.

It is an arithmetic number, because the mean of its divisors is an integer number (181111).

2³⁶²²²¹ is an apocalyptic number.

It is an amenable number.

362221 is a deficient number, since it is larger than the sum of its proper divisors (1).

362221 is an equidigital number, since it uses as much as digits as its factorization.

362221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 16.

The square root of 362221 is about 601.8479874520. The cubic root of 362221 is about 71.2838599707.

Adding to 362221 its reverse (122263), we get a palindrome (484484).

The spelling of 362221 in words is "three hundred sixty-two thousand, two hundred twenty-one".