213322222 has 16 divisors (see below), whose sum is σ = 349736832. Its totient is φ = 97148160.

The previous prime is 213322211. The next prime is 213322223. The reversal of 213322222 is 222223312.

213322222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213322222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213322223) 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, 100143 + ... + 102250.

It is an arithmetic number, because the mean of its divisors is an integer number (21858552).

Almost surely, 2^213322222 is an apocalyptic number.

213322222 is a deficient number, since it is larger than the sum of its proper divisors (136414610).

213322222 is a wasteful number, since it uses less digits than its factorization.

213322222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202443.

The product of its digits is 576, while the sum is 19.

The square root of 213322222 is about 14605.5544913570. The cubic root of 213322222 is about 597.5102588646.

Adding to 213322222 its reverse (222223312), we get a palindrome (435545534).

The spelling of 213322222 in words is "two hundred thirteen million, three hundred twenty-two thousand, two hundred twenty-two".