212012112041 has 4 divisors (see below), whose sum is σ = 212015295492. Its totient is φ = 212008928592.

The previous prime is 212012112031. The next prime is 212012112077. The reversal of 212012112041 is 140211210212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 137267286016 + 74744826025 = 370496^2 + 273395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212012112041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212012112001) 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 3 ways as a sum of consecutive naturals, for example, 1489646 + ... + 1625751.

It is an arithmetic number, because the mean of its divisors is an integer number (53003823873).

Almost surely, 2^212012112041 is an apocalyptic number.

It is an amenable number.

212012112041 is a deficient number, since it is larger than the sum of its proper divisors (3183451).

212012112041 is an equidigital number, since it uses as much as digits as its factorization.

212012112041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183450.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212012112041 its reverse (140211210212), we get a palindrome (352223322253).

The spelling of 212012112041 in words is "two hundred twelve billion, twelve million, one hundred twelve thousand, forty-one".