212201239 has 2 divisors, whose sum is σ = 212201240. Its totient is φ = 212201238.

The previous prime is 212201233. The next prime is 212201333. The reversal of 212201239 is 932102212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212201239 - 2⁹ = 212200727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212201233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100619 + 106100620.

It is an arithmetic number, because the mean of its divisors is an integer number (106100620).

Almost surely, 2^212201239 is an apocalyptic number.

212201239 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201239 is an equidigital number, since it uses as much as digits as its factorization.

212201239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 212201239 is about 14567.1287150214. The cubic root of 212201239 is about 596.4618050104.

The spelling of 212201239 in words is "two hundred twelve million, two hundred one thousand, two hundred thirty-nine".