213133222 has 8 divisors (see below), whose sum is σ = 336526200. Its totient is φ = 100957824.

The previous prime is 213133213. The next prime is 213133223. The reversal of 213133222 is 222331312.

213133222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 213133222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213133223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804347 + ... + 2804422.

It is an arithmetic number, because the mean of its divisors is an integer number (42065775).

Almost surely, 2^213133222 is an apocalyptic number.

213133222 is a deficient number, since it is larger than the sum of its proper divisors (123392978).

213133222 is a wasteful number, since it uses less digits than its factorization.

213133222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608790.

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

The square root of 213133222 is about 14599.0829164027. The cubic root of 213133222 is about 597.3337452858. Note that the first 3 decimals are identical.

Adding to 213133222 its reverse (222331312), we get a palindrome (435464534).

It can be divided in two parts, 2131 and 33222, that added together give a palindrome (35353).

The spelling of 213133222 in words is "two hundred thirteen million, one hundred thirty-three thousand, two hundred twenty-two".