212043242 has 8 divisors (see below), whose sum is σ = 318230436. Its totient is φ = 105966432.

The previous prime is 212043239. The next prime is 212043269. The reversal of 212043242 is 242340212.

212043242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 201668401 + 10374841 = 14201^2 + 3221^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22613 + ... + 30584.

Almost surely, 2^212043242 is an apocalyptic number.

212043242 is a deficient number, since it is larger than the sum of its proper divisors (106187194).

212043242 is a wasteful number, since it uses less digits than its factorization.

212043242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55192.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 212043242 is about 14561.7046392241. The cubic root of 212043242 is about 596.3137339704.

Adding to 212043242 its reverse (242340212), we get a palindrome (454383454).

The spelling of 212043242 in words is "two hundred twelve million, forty-three thousand, two hundred forty-two".