213322 has 4 divisors (see below), whose sum is σ = 319986. Its totient is φ = 106660.

The previous prime is 213319. The next prime is 213329. The reversal of 213322 is 223312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 151321 + 62001 = 389^2 + 249^2 .

It is not an unprimeable number, because it can be changed into a prime (213329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53329 + ... + 53332.

2²¹³³²² is an apocalyptic number.

213322 is a deficient number, since it is larger than the sum of its proper divisors (106664).

213322 is a wasteful number, since it uses less digits than its factorization.

213322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106663.

The product of its digits is 72, while the sum is 13.

The square root of 213322 is about 461.8679464955. The cubic root of 213322 is about 59.7510051592.

Adding to 213322 its reverse (223312), we get a palindrome (436634).

It can be divided in two parts, 213 and 322, that multiplied together give a palindrome (68586).

The spelling of 213322 in words is "two hundred thirteen thousand, three hundred twenty-two".