213322213 has 8 divisors (see below), whose sum is σ = 230268248. Its totient is φ = 196452864.

The previous prime is 213322211. The next prime is 213322223. The reversal of 213322213 is 312223312.

It can be written as a sum of positive squares in 4 ways, for example, as 27899524 + 185422689 = 5282^2 + 13617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213322213 - 2¹ = 213322211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213322211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13320 + ... + 24577.

It is an arithmetic number, because the mean of its divisors is an integer number (28783531).

Almost surely, 2^213322213 is an apocalyptic number.

It is an amenable number.

213322213 is a deficient number, since it is larger than the sum of its proper divisors (16946035).

213322213 is a wasteful number, since it uses less digits than its factorization.

213322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38343.

The product of its digits is 432, while the sum is 19.

The square root of 213322213 is about 14605.5541832551. The cubic root of 213322213 is about 597.5102504617.

Adding to 213322213 its reverse (312223312), we get a palindrome (525545525).

The spelling of 213322213 in words is "two hundred thirteen million, three hundred twenty-two thousand, two hundred thirteen".