12122123131220 has 96 divisors (see below), whose sum is σ = 26259102809856. Its totient is φ = 4698837964800.

The previous prime is 12122123131207. The next prime is 12122123131249. The reversal of 12122123131220 is 2213132122121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22759355 + ... + 23285885.

It is an arithmetic number, because the mean of its divisors is an integer number (273532320936).

Almost surely, 2^{12122123131220} is an apocalyptic number.

12122123131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122123131220 is an abundant number, since it is smaller than the sum of its proper divisors (14136979678636).

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

12122123131220 is a wasteful number, since it uses less digits than its factorization.

12122123131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526881 (or 526879 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12122123131220 its reverse (2213132122121), we get a palindrome (14335255253341).

The spelling of 12122123131220 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty".