213120211 has 8 divisors (see below), whose sum is σ = 225810720. Its totient is φ = 200446848.

The previous prime is 213120197. The next prime is 213120239. The reversal of 213120211 is 112021312.

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

It is a cyclic number.

It is not a de Polignac number, because 213120211 - 2¹³ = 213112019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213120191 and 213120200.

It is not an unprimeable number, because it can be changed into a prime (213120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28570 + ... + 35248.

It is an arithmetic number, because the mean of its divisors is an integer number (28226340).

Almost surely, 2^213120211 is an apocalyptic number.

213120211 is a deficient number, since it is larger than the sum of its proper divisors (12690509).

213120211 is a wasteful number, since it uses less digits than its factorization.

213120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8573.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 213120211 is about 14598.6372994194. The cubic root of 213120211 is about 597.3215900284.

Adding to 213120211 its reverse (112021312), we get a palindrome (325141523).

The spelling of 213120211 in words is "two hundred thirteen million, one hundred twenty thousand, two hundred eleven".