210211211113 has 4 divisors (see below), whose sum is σ = 210284688708. Its totient is φ = 210137733520.

The previous prime is 210211211099. The next prime is 210211211159. The reversal of 210211211113 is 311112112012.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 151672860304 + 58538350809 = 389452^2 + 241947^2 .

It is a cyclic number.

It is not a de Polignac number, because 210211211113 - 2²⁵ = 210177656681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210211211713) 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 3 ways as a sum of consecutive naturals, for example, 36734506 + ... + 36740227.

It is an arithmetic number, because the mean of its divisors is an integer number (52571172177).

Almost surely, 2^210211211113 is an apocalyptic number.

It is an amenable number.

210211211113 is a deficient number, since it is larger than the sum of its proper divisors (73477595).

210211211113 is an equidigital number, since it uses as much as digits as its factorization.

210211211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73477594.

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

Adding to 210211211113 its reverse (311112112012), we get a palindrome (521323323125).

The spelling of 210211211113 in words is "two hundred ten billion, two hundred eleven million, two hundred eleven thousand, one hundred thirteen".