212440330443133 has 16 divisors (see below), whose sum is σ = 229621040104176. Its totient is φ = 195380423884800.

The previous prime is 212440330443127. The next prime is 212440330443161. The reversal of 212440330443133 is 331344033044212.

It can be written as a sum of positive squares in 8 ways, for example, as 107374919422969 + 105065411020164 = 10362187^2 + 10250142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212440330443133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212440330443092 and 212440330443101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212440330443113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13761460 + ... + 24784237.

It is an arithmetic number, because the mean of its divisors is an integer number (14351315006511).

Almost surely, 2^{212440330443133} is an apocalyptic number.

It is an amenable number.

212440330443133 is a deficient number, since it is larger than the sum of its proper divisors (17180709661043).

212440330443133 is a wasteful number, since it uses less digits than its factorization.

212440330443133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38547264.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 212440330443133 its reverse (331344033044212), we get a palindrome (543784363487345).

The spelling of 212440330443133 in words is "two hundred twelve trillion, four hundred forty billion, three hundred thirty million, four hundred forty-three thousand, one hundred thirty-three".