212011110344321 has 8 divisors (see below), whose sum is σ = 212854941456360. Its totient is φ = 211168866874752.

The previous prime is 212011110344221. The next prime is 212011110344339. The reversal of 212011110344321 is 123443011110212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12544524330625 + 199466586013696 = 3541825^2 + 14123264^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011110344321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212011110344381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396643010 + ... + 397177163.

It is an arithmetic number, because the mean of its divisors is an integer number (26606867682045).

Almost surely, 2^{212011110344321} is an apocalyptic number.

It is an amenable number.

212011110344321 is a deficient number, since it is larger than the sum of its proper divisors (843831112039).

212011110344321 is an equidigital number, since it uses as much as digits as its factorization.

212011110344321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793821235.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 212011110344321 its reverse (123443011110212), we get a palindrome (335454121454533).

The spelling of 212011110344321 in words is "two hundred twelve trillion, eleven billion, one hundred ten million, three hundred forty-four thousand, three hundred twenty-one".