212023241 has 2 divisors, whose sum is σ = 212023242. Its totient is φ = 212023240.

The previous prime is 212023199. The next prime is 212023247. The reversal of 212023241 is 142320212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163302841 + 48720400 = 12779^2 + 6980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212023241 is a prime.

It is a Chen prime.

It is a nialpdrome in base 11.

It is not a weakly prime, because it can be changed into another prime (212023247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011620 + 106011621.

It is an arithmetic number, because the mean of its divisors is an integer number (106011621).

Almost surely, 2^212023241 is an apocalyptic number.

It is an amenable number.

212023241 is a deficient number, since it is larger than the sum of its proper divisors (1).

212023241 is an equidigital number, since it uses as much as digits as its factorization.

212023241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 212023241 is about 14561.0178559055. The cubic root of 212023241 is about 596.2949842633.

Adding to 212023241 its reverse (142320212), we get a palindrome (354343453).

The spelling of 212023241 in words is "two hundred twelve million, twenty-three thousand, two hundred forty-one".