12122212120120 has 32 divisors (see below), whose sum is σ = 27281760765120. Its totient is φ = 4847678893440.

The previous prime is 12122212120097. The next prime is 12122212120129. The reversal of 12122212120120 is 2102121222121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122212120129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37523232 + ... + 37844911.

It is an arithmetic number, because the mean of its divisors is an integer number (852555023910).

Almost surely, 2^{12122212120120} is an apocalyptic number.

12122212120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122212120120 is an abundant number, since it is smaller than the sum of its proper divisors (15159548645000).

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

12122212120120 is a wasteful number, since it uses less digits than its factorization.

12122212120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75372175 (or 75372171 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122212120120 its reverse (2102121222121), we get a palindrome (14224333342241).

The spelling of 12122212120120 in words is "twelve trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty".