213312224 has 24 divisors (see below), whose sum is σ = 420300720. Its totient is φ = 106569216.

The previous prime is 213312223. The next prime is 213312251. The reversal of 213312224 is 422213312.

213312224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213312196 and 213312205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213312223) 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, 58157 + ... + 61715.

It is an arithmetic number, because the mean of its divisors is an integer number (17512530).

Almost surely, 2^213312224 is an apocalyptic number.

It is an amenable number.

213312224 is a deficient number, since it is larger than the sum of its proper divisors (206988496).

213312224 is a wasteful number, since it uses less digits than its factorization.

213312224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442 (or 5434 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 213312224 is about 14605.2122203000. The cubic root of 213312224 is about 597.5009240020.

Adding to 213312224 its reverse (422213312), we get a palindrome (635525536).

The spelling of 213312224 in words is "two hundred thirteen million, three hundred twelve thousand, two hundred twenty-four".