213230222 has 4 divisors (see below), whose sum is σ = 319845336. Its totient is φ = 106615110.

The previous prime is 213230219. The next prime is 213230261. The reversal of 213230222 is 222032312.

213230222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213230222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53307554 + ... + 53307557.

It is an arithmetic number, because the mean of its divisors is an integer number (79961334).

Almost surely, 2^213230222 is an apocalyptic number.

213230222 is a deficient number, since it is larger than the sum of its proper divisors (106615114).

213230222 is a wasteful number, since it uses less digits than its factorization.

213230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106615113.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 213230222 is about 14602.4046649858. The cubic root of 213230222 is about 597.4243499398.

Adding to 213230222 its reverse (222032312), we get a palindrome (435262534).

The spelling of 213230222 in words is "two hundred thirteen million, two hundred thirty thousand, two hundred twenty-two".