12501203321020 has 48 divisors (see below), whose sum is σ = 26422447060800. Its totient is φ = 4968122125824.

The previous prime is 12501203321011. The next prime is 12501203321039. The reversal of 12501203321020 is 2012330210521.

It is a super-3 number, since 3×12501203321020³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12501203320982 and 12501203321000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31223056 + ... + 31620904.

It is an arithmetic number, because the mean of its divisors is an integer number (550467647100).

Almost surely, 2^{12501203321020} is an apocalyptic number.

12501203321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12501203321020 is an abundant number, since it is smaller than the sum of its proper divisors (13921243739780).

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

12501203321020 is a wasteful number, since it uses less digits than its factorization.

12501203321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408022 (or 408020 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 12501203321020 its reverse (2012330210521), we get a palindrome (14513533531541).

The spelling of 12501203321020 in words is "twelve trillion, five hundred one billion, two hundred three million, three hundred twenty-one thousand, twenty".