321223202103211 has 4 divisors (see below), whose sum is σ = 321242544758592. Its totient is φ = 321203859447832.

The previous prime is 321223202103163. The next prime is 321223202103217. The reversal of 321223202103211 is 112301202322123.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321223202103211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321223202103217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9671302780 + ... + 9671335993.

It is an arithmetic number, because the mean of its divisors is an integer number (80310636189648).

Almost surely, 2^{321223202103211} is an apocalyptic number.

321223202103211 is a deficient number, since it is larger than the sum of its proper divisors (19342655381).

321223202103211 is a wasteful number, since it uses less digits than its factorization.

321223202103211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19342655380.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321223202103211 its reverse (112301202322123), we get a palindrome (433524404425334).

The spelling of 321223202103211 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, two hundred two million, one hundred three thousand, two hundred eleven".