212342201 has 2 divisors, whose sum is σ = 212342202. Its totient is φ = 212342200.

The previous prime is 212342197. The next prime is 212342209. The reversal of 212342201 is 102243212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207936400 + 4405801 = 14420^2 + 2099^2 .

It is a cyclic number.

It is not a de Polignac number, because 212342201 - 2² = 212342197 is a prime.

It is a super-3 number, since 3×212342201³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212342201.

It is not a weakly prime, because it can be changed into another prime (212342209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106171100 + 106171101.

It is an arithmetic number, because the mean of its divisors is an integer number (106171101).

Almost surely, 2^212342201 is an apocalyptic number.

It is an amenable number.

212342201 is a deficient number, since it is larger than the sum of its proper divisors (1).

212342201 is an equidigital number, since it uses as much as digits as its factorization.

212342201 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 212342201 is about 14571.9662708915. The cubic root of 212342201 is about 596.5938492260.

Adding to 212342201 its reverse (102243212), we get a palindrome (314585413).

The spelling of 212342201 in words is "two hundred twelve million, three hundred forty-two thousand, two hundred one".