211152241 has 2 divisors, whose sum is σ = 211152242. Its totient is φ = 211152240.

The previous prime is 211152239. The next prime is 211152251. The reversal of 211152241 is 142251112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209409841 + 1742400 = 14471^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 211152241 - 2¹ = 211152239 is a prime.

Together with 211152239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (211152211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105576120 + 105576121.

It is an arithmetic number, because the mean of its divisors is an integer number (105576121).

Almost surely, 2^211152241 is an apocalyptic number.

It is an amenable number.

211152241 is a deficient number, since it is larger than the sum of its proper divisors (1).

211152241 is an equidigital number, since it uses as much as digits as its factorization.

211152241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 160, while the sum is 19.

The square root of 211152241 is about 14531.0784527508. The cubic root of 211152241 is about 595.4773289942.

The spelling of 211152241 in words is "two hundred eleven million, one hundred fifty-two thousand, two hundred forty-one".