321420010203222 has 128 divisors (see below), whose sum is σ = 770051210987520. Its totient is φ = 87448590197760.

The previous prime is 321420010203217. The next prime is 321420010203233. The reversal of 321420010203222 is 222302010024123.

It is a junction number, because it is equal to n+sod(n) for n = 321420010203192 and 321420010203201.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 265735354 + ... + 266942162.

It is an arithmetic number, because the mean of its divisors is an integer number (6016025085840).

Almost surely, 2^{321420010203222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321420010203222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385025605493760).

321420010203222 is an abundant number, since it is smaller than the sum of its proper divisors (448631200784298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321420010203222 is a wasteful number, since it uses less digits than its factorization.

321420010203222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208078.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 321420010203222 its reverse (222302010024123), we get a palindrome (543722020227345).

The spelling of 321420010203222 in words is "three hundred twenty-one trillion, four hundred twenty billion, ten million, two hundred three thousand, two hundred twenty-two".