212011020433 has 4 divisors (see below), whose sum is σ = 214393166820. Its totient is φ = 209628874048.

The previous prime is 212011020427. The next prime is 212011020451. The reversal of 212011020433 is 334020110212.

It is a happy number.

212011020433 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 2 ways, for example, as 52719833664 + 159291186769 = 229608^2 + 399113^2 .

It is a cyclic number.

It is not a de Polignac number, because 212011020433 - 2⁹ = 212011019921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212011020433.

It is not an unprimeable number, because it can be changed into a prime (212011020413) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1191073060 + ... + 1191073237.

It is an arithmetic number, because the mean of its divisors is an integer number (53598291705).

Almost surely, 2^212011020433 is an apocalyptic number.

It is an amenable number.

212011020433 is a deficient number, since it is larger than the sum of its proper divisors (2382146387).

212011020433 is an equidigital number, since it uses as much as digits as its factorization.

212011020433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382146386.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212011020433 its reverse (334020110212), we get a palindrome (546031130645).

The spelling of 212011020433 in words is "two hundred twelve billion, eleven million, twenty thousand, four hundred thirty-three".