12422323212 has 48 divisors (see below), whose sum is σ = 31501488480. Its totient is φ = 3787181568.

The previous prime is 12422323211. The next prime is 12422323231. The reversal of 12422323212 is 21232322421.

It is a super-2 number, since 2×12422323212² (a number of 21 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 (12422323211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348273 + ... + 382280.

It is an arithmetic number, because the mean of its divisors is an integer number (656281010).

Almost surely, 2^12422323212 is an apocalyptic number.

12422323212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12422323212 is an abundant number, since it is smaller than the sum of its proper divisors (19079165268).

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

12422323212 is a wasteful number, since it uses less digits than its factorization.

12422323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730682 (or 730680 counting only the distinct ones).

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

Adding to 12422323212 its reverse (21232322421), we get a palindrome (33654645633).

It can be divided in two parts, 12 and 422323212, that added together give a palindrome (422323224).

The spelling of 12422323212 in words is "twelve billion, four hundred twenty-two million, three hundred twenty-three thousand, two hundred twelve".