321212102223 has 32 divisors (see below), whose sum is σ = 467620876800. Its totient is φ = 195349746816.

The previous prime is 321212102207. The next prime is 321212102251. The reversal of 321212102223 is 322201212123.

It is not a de Polignac number, because 321212102223 - 2⁴ = 321212102207 is a prime.

It is a super-2 number, since 2×321212102223² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321212102223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321212102273) 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 31 ways as a sum of consecutive naturals, for example, 356086 + ... + 877052.

It is an arithmetic number, because the mean of its divisors is an integer number (14613152400).

Almost surely, 2^321212102223 is an apocalyptic number.

321212102223 is a deficient number, since it is larger than the sum of its proper divisors (146408774577).

321212102223 is a wasteful number, since it uses less digits than its factorization.

321212102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521391.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 321212102223 its reverse (322201212123), we get a palindrome (643413314346).

The spelling of 321212102223 in words is "three hundred twenty-one billion, two hundred twelve million, one hundred two thousand, two hundred twenty-three".