211340121 has 8 divisors (see below), whose sum is σ = 281875680. Its totient is φ = 140848992.

The previous prime is 211340111. The next prime is 211340149. The reversal of 211340121 is 121043112.

211340121 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 not a de Polignac number, because 211340121 - 2⁷ = 211339993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211340121.

It is not an unprimeable number, because it can be changed into a prime (211340111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2310 + ... + 20688.

It is an arithmetic number, because the mean of its divisors is an integer number (35234460).

Almost surely, 2^211340121 is an apocalyptic number.

It is an amenable number.

211340121 is a deficient number, since it is larger than the sum of its proper divisors (70535559).

211340121 is a wasteful number, since it uses less digits than its factorization.

211340121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22215.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 211340121 is about 14537.5417798196. The cubic root of 211340121 is about 595.6538921443.

Adding to 211340121 its reverse (121043112), we get a palindrome (332383233).

The spelling of 211340121 in words is "two hundred eleven million, three hundred forty thousand, one hundred twenty-one".