13122122120020 has 48 divisors (see below), whose sum is σ = 28143297745920. Its totient is φ = 5137073790464.

The previous prime is 13122122120017. The next prime is 13122122120021. The reversal of 13122122120020 is 2002122122131.

It is a self number, because there is not a number n which added to its sum of digits gives 13122122120020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122122120021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68231637 + ... + 68423683.

It is an arithmetic number, because the mean of its divisors is an integer number (586318703040).

Almost surely, 2^{13122122120020} is an apocalyptic number.

13122122120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122122120020 is an abundant number, since it is smaller than the sum of its proper divisors (15021175625900).

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

13122122120020 is a wasteful number, since it uses less digits than its factorization.

13122122120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264792 (or 264790 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 13122122120020 its reverse (2002122122131), we get a palindrome (15124244242151).

The spelling of 13122122120020 in words is "thirteen trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty thousand, twenty".