212701 has 2 divisors, whose sum is σ = 212702. Its totient is φ = 212700.
The previous prime is 212683. The next prime is 212777. The reversal of 212701 is 107212.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 202500 + 10201 = 450^2 + 101^2 .
It is a cyclic number.
It is not a de Polignac number, because 212701 - 25 = 212669 is a prime.
It is a Chen prime.
It is an alternating number because its digits alternate between even and odd.
It is a nialpdrome in base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (212791) 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, 106350 + 106351.
It is an arithmetic number, because the mean of its divisors is an integer number (106351).
2212701 is an apocalyptic number.
It is an amenable number.
212701 is a deficient number, since it is larger than the sum of its proper divisors (1).
212701 is an equidigital number, since it uses as much as digits as its factorization.
212701 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 28, while the sum is 13.
The square root of 212701 is about 461.1951864450. The cubic root of 212701 is about 59.6929685787.
Adding to 212701 its reverse (107212), we get a palindrome (319913).
The spelling of 212701 in words is "two hundred twelve thousand, seven hundred one", and thus it is an iban number.
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