212012434244 has 48 divisors (see below), whose sum is σ = 403946874240. Its totient is φ = 96780407040.

The previous prime is 212012434243. The next prime is 212012434247. The reversal of 212012434244 is 442434210212.

It is a happy number.

212012434244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212012434243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4319312 + ... + 4368120.

It is an arithmetic number, because the mean of its divisors is an integer number (8415559880).

Almost surely, 2^212012434244 is an apocalyptic number.

It is an amenable number.

212012434244 is a deficient number, since it is larger than the sum of its proper divisors (191934439996).

212012434244 is a wasteful number, since it uses less digits than its factorization.

212012434244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49740 (or 49738 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 212012434244 its reverse (442434210212), we get a palindrome (654446644456).

The spelling of 212012434244 in words is "two hundred twelve billion, twelve million, four hundred thirty-four thousand, two hundred forty-four".