211322141 has 2 divisors, whose sum is σ = 211322142. Its totient is φ = 211322140.

The previous prime is 211322063. The next prime is 211322143. The reversal of 211322141 is 141223112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207504025 + 3818116 = 14405^2 + 1954^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211322141 is a prime.

Together with 211322143, 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 (211322143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105661070 + 105661071.

It is an arithmetic number, because the mean of its divisors is an integer number (105661071).

Almost surely, 2^211322141 is an apocalyptic number.

It is an amenable number.

211322141 is a deficient number, since it is larger than the sum of its proper divisors (1).

211322141 is an equidigital number, since it uses as much as digits as its factorization.

211322141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 17.

The square root of 211322141 is about 14536.9233677556. The cubic root of 211322141 is about 595.6369996889.

Adding to 211322141 its reverse (141223112), we get a palindrome (352545253).

The spelling of 211322141 in words is "two hundred eleven million, three hundred twenty-two thousand, one hundred forty-one".