321224231230211 has 4 divisors (see below), whose sum is σ = 321225061231872. Its totient is φ = 321223401228552.

The previous prime is 321224231230187. The next prime is 321224231230229. The reversal of 321224231230211 is 112032132422123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321224231230211 - 2²⁶ = 321224164121347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321224231232211) 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 3 ways as a sum of consecutive naturals, for example, 414420035 + ... + 415194428.

It is an arithmetic number, because the mean of its divisors is an integer number (80306265307968).

Almost surely, 2^{321224231230211} is an apocalyptic number.

321224231230211 is a deficient number, since it is larger than the sum of its proper divisors (830001661).

321224231230211 is an equidigital number, since it uses as much as digits as its factorization.

321224231230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830001660.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 321224231230211 its reverse (112032132422123), we get a palindrome (433256363652334).

The spelling of 321224231230211 in words is "three hundred twenty-one trillion, two hundred twenty-four billion, two hundred thirty-one million, two hundred thirty thousand, two hundred eleven".