321120020022 has 16 divisors (see below), whose sum is σ = 646330742832. Its totient is φ = 106358222880.

The previous prime is 321120020021. The next prime is 321120020101. The reversal of 321120020022 is 220020021123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321120019983 and 321120020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321120020021) 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 7 ways as a sum of consecutive naturals, for example, 170444929 + ... + 170446812.

It is an arithmetic number, because the mean of its divisors is an integer number (40395671427).

Almost surely, 2^321120020022 is an apocalyptic number.

321120020022 is an abundant number, since it is smaller than the sum of its proper divisors (325210722810).

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

321120020022 is a wasteful number, since it uses less digits than its factorization.

321120020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340891903.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 321120020022 its reverse (220020021123), we get a palindrome (541140041145).

The spelling of 321120020022 in words is "three hundred twenty-one billion, one hundred twenty million, twenty thousand, twenty-two".