213011211211 has 8 divisors (see below), whose sum is σ = 213497166960. Its totient is φ = 212525808768.

The previous prime is 213011211187. The next prime is 213011211247. The reversal of 213011211211 is 112112110312.

It is a happy number.

213011211211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213011211211 - 2¹¹ = 213011209163 is a prime.

It is a super-2 number, since 2×213011211211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213011211251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637455 + ... + 912343.

It is an arithmetic number, because the mean of its divisors is an integer number (26687145870).

Almost surely, 2^213011211211 is an apocalyptic number.

213011211211 is a deficient number, since it is larger than the sum of its proper divisors (485955749).

213011211211 is an equidigital number, since it uses as much as digits as its factorization.

213011211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276653.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 213011211211 its reverse (112112110312), we get a palindrome (325123321523).

The spelling of 213011211211 in words is "two hundred thirteen billion, eleven million, two hundred eleven thousand, two hundred eleven".