321222222123 has 32 divisors (see below), whose sum is σ = 481057615872. Its totient is φ = 188945856000.

The previous prime is 321222222119. The next prime is 321222222157.

321222222123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321222222123 - 2² = 321222222119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321222222093 and 321222222102.

It is not an unprimeable number, because it can be changed into a prime (321222223123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161590 + ... + 817652.

It is an arithmetic number, because the mean of its divisors is an integer number (15033050496).

Almost surely, 2^321222222123 is an apocalyptic number.

321222222123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

321222222123 is a deficient number, since it is larger than the sum of its proper divisors (159835393749).

321222222123 is a wasteful number, since it uses less digits than its factorization.

321222222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656515.

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

It can be divided in two parts, 321222 and 222123, that added together give a palindrome (543345).

The spelling of 321222222123 in words is "three hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-three".