212242341 has 4 divisors (see below), whose sum is σ = 282989792. Its totient is φ = 141494892.

The previous prime is 212242333. The next prime is 212242343. The reversal of 212242341 is 143242212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212242341 - 2³ = 212242333 is a prime.

It is a super-2 number, since 2×212242341² = 90093622626320562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212242343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35373721 + ... + 35373726.

It is an arithmetic number, because the mean of its divisors is an integer number (70747448).

Almost surely, 2^212242341 is an apocalyptic number.

It is an amenable number.

212242341 is a deficient number, since it is larger than the sum of its proper divisors (70747451).

212242341 is an equidigital number, since it uses as much as digits as its factorization.

212242341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70747450.

The product of its digits is 768, while the sum is 21.

The square root of 212242341 is about 14568.5394257626. The cubic root of 212242341 is about 596.5003127818.

Adding to 212242341 its reverse (143242212), we get a palindrome (355484553).

The spelling of 212242341 in words is "two hundred twelve million, two hundred forty-two thousand, three hundred forty-one".