211114121 has 4 divisors (see below), whose sum is σ = 211712532. Its totient is φ = 210515712.

The previous prime is 211114097. The next prime is 211114129. The reversal of 211114121 is 121411112.

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 120121600 + 90992521 = 10960^2 + 9539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211114121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211114096 and 211114105.

It is not an unprimeable number, because it can be changed into a prime (211114129) 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, 298676 + ... + 299381.

It is an arithmetic number, because the mean of its divisors is an integer number (52928133).

Almost surely, 2^211114121 is an apocalyptic number.

It is an amenable number.

211114121 is a deficient number, since it is larger than the sum of its proper divisors (598411).

211114121 is an equidigital number, since it uses as much as digits as its factorization.

211114121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598410.

The product of its digits is 16, while the sum is 14.

The square root of 211114121 is about 14529.7667221466. The cubic root of 211114121 is about 595.4414923520.

Adding to 211114121 its reverse (121411112), we get a palindrome (332525233).

The spelling of 211114121 in words is "two hundred eleven million, one hundred fourteen thousand, one hundred twenty-one".