212243030606 has 4 divisors (see below), whose sum is σ = 318364545912. Its totient is φ = 106121515302.

The previous prime is 212243030543. The next prime is 212243030611. The reversal of 212243030606 is 606030342212.

212243030606 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53060757650 + ... + 53060757653.

It is an arithmetic number, because the mean of its divisors is an integer number (79591136478).

Almost surely, 2^212243030606 is an apocalyptic number.

212243030606 is a deficient number, since it is larger than the sum of its proper divisors (106121515306).

212243030606 is a wasteful number, since it uses less digits than its factorization.

212243030606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106121515305.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 212243030606 its reverse (606030342212), we get a palindrome (818273372818).

The spelling of 212243030606 in words is "two hundred twelve billion, two hundred forty-three million, thirty thousand, six hundred six".