212241442 has 24 divisors (see below), whose sum is σ = 371048796. Its totient is φ = 90786528.

The previous prime is 212241439. The next prime is 212241443. The reversal of 212241442 is 244142212.

It can be written as a sum of positive squares in 2 ways, for example, as 204518601 + 7722841 = 14301^2 + 2779^2 .

It is not an unprimeable number, because it can be changed into a prime (212241443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58308 + ... + 61840.

Almost surely, 2^212241442 is an apocalyptic number.

212241442 is a deficient number, since it is larger than the sum of its proper divisors (158807354).

212241442 is a wasteful number, since it uses less digits than its factorization.

212241442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162 (or 4155 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 212241442 is about 14568.5085715731. The cubic root of 212241442 is about 596.4994705771.

Adding to 212241442 its reverse (244142212), we get a palindrome (456383654).

The spelling of 212241442 in words is "two hundred twelve million, two hundred forty-one thousand, four hundred forty-two".