212112241 has 4 divisors (see below), whose sum is σ = 231395184. Its totient is φ = 192829300.

The previous prime is 212112223. The next prime is 212112253. The reversal of 212112241 is 142211212.

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 a cyclic number.

It is not a de Polignac number, because 212112241 - 2¹⁵ = 212079473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9641455 + ... + 9641476.

It is an arithmetic number, because the mean of its divisors is an integer number (57848796).

Almost surely, 2^212112241 is an apocalyptic number.

It is an amenable number.

212112241 is a deficient number, since it is larger than the sum of its proper divisors (19282943).

212112241 is a wasteful number, since it uses less digits than its factorization.

212112241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19282942.

The product of its digits is 64, while the sum is 16.

The square root of 212112241 is about 14564.0736402972. The cubic root of 212112241 is about 596.3784072400.

Adding to 212112241 its reverse (142211212), we get a palindrome (354323453).

The spelling of 212112241 in words is "two hundred twelve million, one hundred twelve thousand, two hundred forty-one".