212100571 has 2 divisors, whose sum is σ = 212100572. Its totient is φ = 212100570.

The previous prime is 212100569. The next prime is 212100583. The reversal of 212100571 is 175001212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212100571 - 2¹ = 212100569 is a prime.

Together with 212100569, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212100071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050285 + 106050286.

It is an arithmetic number, because the mean of its divisors is an integer number (106050286).

Almost surely, 2^212100571 is an apocalyptic number.

212100571 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100571 is an equidigital number, since it uses as much as digits as its factorization.

212100571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 212100571 is about 14563.6729913851. The cubic root of 212100571 is about 596.3674698488.

Adding to 212100571 its reverse (175001212), we get a palindrome (387101783).

The spelling of 212100571 in words is "two hundred twelve million, one hundred thousand, five hundred seventy-one".