212078201 has 2 divisors, whose sum is σ = 212078202. Its totient is φ = 212078200.

The previous prime is 212078177. The next prime is 212078233. The reversal of 212078201 is 102870212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196672576 + 15405625 = 14024^2 + 3925^2 .

It is a cyclic number.

It is not a de Polignac number, because 212078201 - 2¹⁸ = 211816057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212078401) 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, 106039100 + 106039101.

It is an arithmetic number, because the mean of its divisors is an integer number (106039101).

Almost surely, 2^212078201 is an apocalyptic number.

It is an amenable number.

212078201 is a deficient number, since it is larger than the sum of its proper divisors (1).

212078201 is an equidigital number, since it uses as much as digits as its factorization.

212078201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 212078201 is about 14562.9049643263. The cubic root of 212078201 is about 596.3465030510.

The spelling of 212078201 in words is "two hundred twelve million, seventy-eight thousand, two hundred one".