212132241 has 6 divisors (see below), whose sum is σ = 306413250. Its totient is φ = 141421488.

The previous prime is 212132231. The next prime is 212132257. The reversal of 212132241 is 142231212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 211091841 + 1040400 = 14529^2 + 1020^2 .

It is not a de Polignac number, because 212132241 - 2⁶ = 212132177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212132231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11785116 + ... + 11785133.

It is an arithmetic number, because the mean of its divisors is an integer number (51068875).

Almost surely, 2^212132241 is an apocalyptic number.

It is an amenable number.

212132241 is a deficient number, since it is larger than the sum of its proper divisors (94281009).

212132241 is a wasteful number, since it uses less digits than its factorization.

212132241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23570255 (or 23570252 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 212132241 is about 14564.7602451946. The cubic root of 212132241 is about 596.3971507650.

Adding to 212132241 its reverse (142231212), we get a palindrome (354363453).

The spelling of 212132241 in words is "two hundred twelve million, one hundred thirty-two thousand, two hundred forty-one".