212241204243 has 48 divisors (see below), whose sum is σ = 324883072800. Its totient is φ = 133145026560.

The previous prime is 212241204181. The next prime is 212241204271. The reversal of 212241204243 is 342402142212.

It is a happy number.

212241204243 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 412 + 0 + 4 + 243 = 666.

It is not a de Polignac number, because 212241204243 - 2⁶ = 212241204179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212241204283) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21588453 + ... + 21598281.

It is an arithmetic number, because the mean of its divisors is an integer number (6768397350).

Almost surely, 2^212241204243 is an apocalyptic number.

212241204243 is a deficient number, since it is larger than the sum of its proper divisors (112641868557).

212241204243 is a wasteful number, since it uses less digits than its factorization.

212241204243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692 (or 10689 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 212241204243 its reverse (342402142212), we get a palindrome (554643346455).

The spelling of 212241204243 in words is "two hundred twelve billion, two hundred forty-one million, two hundred four thousand, two hundred forty-three".