321110302212 has 48 divisors (see below), whose sum is σ = 951437934720. Its totient is φ = 91745800416.

The previous prime is 321110302181. The next prime is 321110302259. The reversal of 321110302212 is 212203011123.

It is a super-2 number, since 2×321110302212² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 212373783 + ... + 212375294.

It is an arithmetic number, because the mean of its divisors is an integer number (19821623640).

Almost surely, 2^321110302212 is an apocalyptic number.

It is an amenable number.

321110302212 is an abundant number, since it is smaller than the sum of its proper divisors (630327632508).

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

321110302212 is a wasteful number, since it uses less digits than its factorization.

321110302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424749097 (or 424749089 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 321110302212 its reverse (212203011123), we get a palindrome (533313313335).

The spelling of 321110302212 in words is "three hundred twenty-one billion, one hundred ten million, three hundred two thousand, two hundred twelve".