12122222122212 has 48 divisors (see below), whose sum is σ = 28438606479360. Its totient is φ = 4018872994848.

The previous prime is 12122222122189. The next prime is 12122222122249. The reversal of 12122222122212 is 21222122222121.

It is a happy number.

12122222122212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149028 + ... + 5056155.

It is an arithmetic number, because the mean of its divisors is an integer number (592470968320).

Almost surely, 2^{12122222122212} is an apocalyptic number.

12122222122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122222122212 is an abundant number, since it is smaller than the sum of its proper divisors (16316384357148).

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

12122222122212 is a wasteful number, since it uses less digits than its factorization.

12122222122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206072 (or 6206070 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

Adding to 12122222122212 its reverse (21222122222121), we get a palindrome (33344344344333).

Subtracting 12122222122212 from its reverse (21222122222121), we obtain a palindrome (9099900099909).

The spelling of 12122222122212 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twelve".