68216201 has 2 divisors, whose sum is σ = 68216202. Its totient is φ = 68216200.

The previous prime is 68216177. The next prime is 68216209. The reversal of 68216201 is 10261286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52998400 + 15217801 = 7280^2 + 3901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68216201 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (68216209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34108100 + 34108101.

It is an arithmetic number, because the mean of its divisors is an integer number (34108101).

Almost surely, 2^68216201 is an apocalyptic number.

It is an amenable number.

68216201 is a deficient number, since it is larger than the sum of its proper divisors (1).

68216201 is an equidigital number, since it uses as much as digits as its factorization.

68216201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 68216201 is about 8259.3099590704. The cubic root of 68216201 is about 408.5976299596.

Adding to 68216201 its reverse (10261286), we get a palindrome (78477487).

The spelling of 68216201 in words is "sixty-eight million, two hundred sixteen thousand, two hundred one".