213210331211 has 16 divisors (see below), whose sum is σ = 217700683200. Its totient is φ = 208776268800.

The previous prime is 213210331151. The next prime is 213210331231. The reversal of 213210331211 is 112133012312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213210331211 - 2¹⁴ = 213210314827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213210331231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3854810 + ... + 3909728.

It is an arithmetic number, because the mean of its divisors is an integer number (13606292700).

Almost surely, 2^213210331211 is an apocalyptic number.

213210331211 is a deficient number, since it is larger than the sum of its proper divisors (4490351989).

213210331211 is a wasteful number, since it uses less digits than its factorization.

213210331211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55430.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213210331211 its reverse (112133012312), we get a palindrome (325343343523).

The spelling of 213210331211 in words is "two hundred thirteen billion, two hundred ten million, three hundred thirty-one thousand, two hundred eleven".