212330331110321 has 8 divisors (see below), whose sum is σ = 213100615967400. Its totient is φ = 211560073227648.

The previous prime is 212330331110279. The next prime is 212330331110353. The reversal of 212330331110321 is 123011133033212.

It can be written as a sum of positive squares in 4 ways, for example, as 2564033587600 + 209766297522721 = 1601260^2 + 14483311^2 .

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 212330331110321 - 2²² = 212330326916017 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 (212330331110021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9095405 + ... + 22525253.

It is an arithmetic number, because the mean of its divisors is an integer number (26637576995925).

Almost surely, 2^{212330331110321} is an apocalyptic number.

It is an amenable number.

212330331110321 is a deficient number, since it is larger than the sum of its proper divisors (770284857079).

212330331110321 is a wasteful number, since it uses less digits than its factorization.

212330331110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13487203.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 212330331110321 its reverse (123011133033212), we get a palindrome (335341464143533).

The spelling of 212330331110321 in words is "two hundred twelve trillion, three hundred thirty billion, three hundred thirty-one million, one hundred ten thousand, three hundred twenty-one".