211116241 has 16 divisors (see below), whose sum is σ = 252857088. Its totient is φ = 172339200.

The previous prime is 211116233. The next prime is 211116247. The reversal of 211116241 is 142611112.

It is a cyclic number.

It is not a de Polignac number, because 211116241 - 2³ = 211116233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211116247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36081 + ... + 41521.

It is an arithmetic number, because the mean of its divisors is an integer number (15803568).

Almost surely, 2^211116241 is an apocalyptic number.

It is an amenable number.

211116241 is a deficient number, since it is larger than the sum of its proper divisors (41740847).

211116241 is a wasteful number, since it uses less digits than its factorization.

211116241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712.

The product of its digits is 96, while the sum is 19.

The square root of 211116241 is about 14529.8396756468. The cubic root of 211116241 is about 595.4434854790.

Adding to 211116241 its reverse (142611112), we get a palindrome (353727353).

The spelling of 211116241 in words is "two hundred eleven million, one hundred sixteen thousand, two hundred forty-one".