12122321012320 has 48 divisors (see below), whose sum is σ = 28922537721168. Its totient is φ = 4800919206400.

The previous prime is 12122321012303. The next prime is 12122321012323. The reversal of 12122321012320 is 2321012322121.

It is a junction number, because it is equal to n+sod(n) for n = 12122321012291 and 12122321012300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122321012323) 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, 375055654 + ... + 375087973.

It is an arithmetic number, because the mean of its divisors is an integer number (602552869191).

Almost surely, 2^{12122321012320} is an apocalyptic number.

12122321012320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122321012320 is an abundant number, since it is smaller than the sum of its proper divisors (16800216708848).

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

12122321012320 is a wasteful number, since it uses less digits than its factorization.

12122321012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750143743 (or 750143735 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12122321012320 its reverse (2321012322121), we get a palindrome (14443333334441).

The spelling of 12122321012320 in words is "twelve trillion, one hundred twenty-two billion, three hundred twenty-one million, twelve thousand, three hundred twenty".