321111223122 has 32 divisors (see below), whose sum is σ = 662485551552. Its totient is φ = 103685379264.

The previous prime is 321111223099. The next prime is 321111223127. The reversal of 321111223122 is 221322111123.

It is a super-2 number, since 2×321111223122² (a number of 24 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (321111223127) 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 15 ways as a sum of consecutive naturals, for example, 3135613 + ... + 3236400.

It is an arithmetic number, because the mean of its divisors is an integer number (20702673486).

Almost surely, 2^321111223122 is an apocalyptic number.

321111223122 is an abundant number, since it is smaller than the sum of its proper divisors (341374328430).

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

321111223122 is a wasteful number, since it uses less digits than its factorization.

321111223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372282.

The product of its digits is 288, while the sum is 21.

Adding to 321111223122 its reverse (221322111123), we get a palindrome (542433334245).

The spelling of 321111223122 in words is "three hundred twenty-one billion, one hundred eleven million, two hundred twenty-three thousand, one hundred twenty-two".