213222032 has 10 divisors (see below), whose sum is σ = 413117718. Its totient is φ = 106611008.

The previous prime is 213222013. The next prime is 213222049. The reversal of 213222032 is 230222312.

It can be written as a sum of positive squares in only one way, i.e., 207821056 + 5400976 = 14416^2 + 2324^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213222032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6663173 + ... + 6663204.

Almost surely, 2^213222032 is an apocalyptic number.

It is an amenable number.

213222032 is a deficient number, since it is larger than the sum of its proper divisors (199895686).

213222032 is a wasteful number, since it uses less digits than its factorization.

213222032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13326385 (or 13326379 counting only the distinct ones).

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

The square root of 213222032 is about 14602.1242290291. The cubic root of 213222032 is about 597.4167009802.

Adding to 213222032 its reverse (230222312), we get a palindrome (443444344).

The spelling of 213222032 in words is "two hundred thirteen million, two hundred twenty-two thousand, thirty-two".