212112213133 has 8 divisors (see below), whose sum is σ = 217367571960. Its totient is φ = 206860753920.

The previous prime is 212112213121. The next prime is 212112213193. The reversal of 212112213133 is 331312211212.

212112213133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21586074084 + 190526139049 = 146922^2 + 436493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212112213133 - 2²¹ = 212110115981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112213193) 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 7 ways as a sum of consecutive naturals, for example, 864618 + ... + 1082491.

It is an arithmetic number, because the mean of its divisors is an integer number (27170946495).

Almost surely, 2^212112213133 is an apocalyptic number.

It is an amenable number.

212112213133 is a deficient number, since it is larger than the sum of its proper divisors (5255358827).

212112213133 is a wasteful number, since it uses less digits than its factorization.

212112213133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949807.

The product of its digits is 432, while the sum is 22.

Adding to 212112213133 its reverse (331312211212), we get a palindrome (543424424345).

The spelling of 212112213133 in words is "two hundred twelve billion, one hundred twelve million, two hundred thirteen thousand, one hundred thirty-three".