122223312012 has 24 divisors (see below), whose sum is σ = 297587195136. Its totient is φ = 38969751568.

The previous prime is 122223311983. The next prime is 122223312019. The reversal of 122223312012 is 210213322221.

122223312012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 122223312012.

It is not an unprimeable number, because it can be changed into a prime (122223312019) 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, 221418768 + ... + 221419319.

It is an arithmetic number, because the mean of its divisors is an integer number (12399466464).

Almost surely, 2^122223312012 is an apocalyptic number.

122223312012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122223312012 is an abundant number, since it is smaller than the sum of its proper divisors (175363883124).

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

122223312012 is a wasteful number, since it uses less digits than its factorization.

122223312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442838117 (or 442838115 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122223312012 its reverse (210213322221), we get a palindrome (332436634233).

The spelling of 122223312012 in words is "one hundred twenty-two billion, two hundred twenty-three million, three hundred twelve thousand, twelve".