212412243 has 8 divisors (see below), whose sum is σ = 283324048. Its totient is φ = 141554304.

The previous prime is 212412241. The next prime is 212412247. The reversal of 212412243 is 342214212.

212412243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212412243 - 2¹ = 212412241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212412241) 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, 3130 + ... + 20847.

It is an arithmetic number, because the mean of its divisors is an integer number (35415506).

Almost surely, 2^212412243 is an apocalyptic number.

212412243 is a deficient number, since it is larger than the sum of its proper divisors (70911805).

212412243 is a wasteful number, since it uses less digits than its factorization.

212412243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26933.

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

The square root of 212412243 is about 14574.3693860146. The cubic root of 212412243 is about 596.6594383750.

Adding to 212412243 its reverse (342214212), we get a palindrome (554626455).

The spelling of 212412243 in words is "two hundred twelve million, four hundred twelve thousand, two hundred forty-three".