213201211 has 4 divisors (see below), whose sum is σ = 213270624. Its totient is φ = 213131800.

The previous prime is 213201193. The next prime is 213201217. The reversal of 213201211 is 112102312.

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

It is a cyclic number.

It is not a de Polignac number, because 213201211 - 2⁵ = 213201179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213201191 and 213201200.

It is not an unprimeable number, because it can be changed into a prime (213201217) 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, 29875 + ... + 36316.

It is an arithmetic number, because the mean of its divisors is an integer number (53317656).

Almost surely, 2^213201211 is an apocalyptic number.

213201211 is a deficient number, since it is larger than the sum of its proper divisors (69413).

213201211 is an equidigital number, since it uses as much as digits as its factorization.

213201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69412.

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

The square root of 213201211 is about 14601.4112674084. The cubic root of 213201211 is about 597.3972545563.

Adding to 213201211 its reverse (112102312), we get a palindrome (325303523).

The spelling of 213201211 in words is "two hundred thirteen million, two hundred one thousand, two hundred eleven".