212133043121 has 8 divisors (see below), whose sum is σ = 218981746944. Its totient is φ = 205284695760.

The previous prime is 212133043079. The next prime is 212133043201. The reversal of 212133043121 is 121340331212.

212133043121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-212133043121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212133040121) 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, 1674806 + ... + 1797008.

It is an arithmetic number, because the mean of its divisors is an integer number (27372718368).

Almost surely, 2^212133043121 is an apocalyptic number.

It is an amenable number.

212133043121 is a deficient number, since it is larger than the sum of its proper divisors (6848703823).

212133043121 is a wasteful number, since it uses less digits than its factorization.

212133043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178231.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212133043121 its reverse (121340331212), we get a palindrome (333473374333).

The spelling of 212133043121 in words is "two hundred twelve billion, one hundred thirty-three million, forty-three thousand, one hundred twenty-one".