211061 has 2 divisors, whose sum is σ = 211062. Its totient is φ = 211060.

The previous prime is 211051. The next prime is 211063. The reversal of 211061 is 160112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164836 + 46225 = 406^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 211061 - 2¹⁰ = 210037 is a prime.

Together with 211063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105530 + 105531.

It is an arithmetic number, because the mean of its divisors is an integer number (105531).

2²¹¹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

211061 is a deficient number, since it is larger than the sum of its proper divisors (1).

211061 is an equidigital number, since it uses as much as digits as its factorization.

211061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 211061 is about 459.4137568685. The cubic root of 211061 is about 59.5391546063.

Adding to 211061 its reverse (160112), we get a palindrome (371173).

It can be divided in two parts, 2 and 11061, that multiplied together give a palindrome (22122).

The spelling of 211061 in words is "two hundred eleven thousand, sixty-one".