121321222030120 has 1024 divisors, whose sum is σ = 361098628300800. Its totient is φ = 35711439667200.

The previous prime is 121321222030091. The next prime is 121321222030121. The reversal of 121321222030120 is 21030222123121.

121321222030120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121321222030091 and 121321222030100.

It is not an unprimeable number, because it can be changed into a prime (121321222030121) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 42140054841 + ... + 42140057719.

It is an arithmetic number, because the mean of its divisors is an integer number (352635379200).

Almost surely, 2^{121321222030120} is an apocalyptic number.

121321222030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121321222030120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180549314150400).

121321222030120 is an abundant number, since it is smaller than the sum of its proper divisors (239777406270680).

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

121321222030120 is a wasteful number, since it uses less digits than its factorization.

121321222030120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178 (or 3174 counting only the distinct ones).

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

Adding to 121321222030120 its reverse (21030222123121), we get a palindrome (142351444153241).

The spelling of 121321222030120 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, two hundred twenty-two million, thirty thousand, one hundred twenty".