212571 has 8 divisors (see below), whose sum is σ = 314960. Its totient is φ = 141696.

The previous prime is 212561. The next prime is 212573. The reversal of 212571 is 175212.

It is not a de Polignac number, because 212571 - 2⁶ = 212507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3910 + ... + 3963.

It is an arithmetic number, because the mean of its divisors is an integer number (39370).

2²¹²⁵⁷¹ is an apocalyptic number.

212571 is a deficient number, since it is larger than the sum of its proper divisors (102389).

212571 is an equidigital number, since it uses as much as digits as its factorization.

212571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7882 (or 7876 counting only the distinct ones).

The product of its digits is 140, while the sum is 18.

The square root of 212571 is about 461.0542267456. The cubic root of 212571 is about 59.6808049196.

Adding to 212571 its reverse (175212), we get a palindrome (387783).

The spelling of 212571 in words is "two hundred twelve thousand, five hundred seventy-one".