212243040034 has 4 divisors (see below), whose sum is σ = 318364560054. Its totient is φ = 106121520016.

The previous prime is 212243040013. The next prime is 212243040041. The reversal of 212243040034 is 430040342212.

It is a happy number.

212243040034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 192504195009 + 19738845025 = 438753^2 + 140495^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212243039990 and 212243040008.

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, 53060760007 + ... + 53060760010.

Almost surely, 2^212243040034 is an apocalyptic number.

212243040034 is a deficient number, since it is larger than the sum of its proper divisors (106121520020).

212243040034 is a wasteful number, since it uses less digits than its factorization.

212243040034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106121520019.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 212243040034 its reverse (430040342212), we get a palindrome (642283382246).

The spelling of 212243040034 in words is "two hundred twelve billion, two hundred forty-three million, forty thousand, thirty-four".