213330222 has 96 divisors (see below), whose sum is σ = 545688000. Its totient is φ = 60201792.

The previous prime is 213330209. The next prime is 213330239. The reversal of 213330222 is 222033312.

It is a happy number.

213330222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 213330195 and 213330204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 672808 + ... + 673124.

It is an arithmetic number, because the mean of its divisors is an integer number (5684250).

Almost surely, 2^213330222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213330222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272844000).

213330222 is an abundant number, since it is smaller than the sum of its proper divisors (332357778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213330222 is a wasteful number, since it uses less digits than its factorization.

213330222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213330222 is about 14605.8283572004. The cubic root of 213330222 is about 597.5177280385.

Adding to 213330222 its reverse (222033312), we get a palindrome (435363534).

The spelling of 213330222 in words is "two hundred thirteen million, three hundred thirty thousand, two hundred twenty-two".