13320120212020 has 48 divisors (see below), whose sum is σ = 29659930202448. Its totient is φ = 5007479859200.

The previous prime is 13320120211963. The next prime is 13320120212023. The reversal of 13320120212020 is 2021202102331.

It can be written as a sum of positive squares in 8 ways, for example, as 604605774096 + 12715514437924 = 777564^2 + 3565882^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320120212023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27705187 + ... + 28181866.

It is an arithmetic number, because the mean of its divisors is an integer number (617915212551).

Almost surely, 2^{13320120212020} is an apocalyptic number.

13320120212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320120212020 is an abundant number, since it is smaller than the sum of its proper divisors (16339809990428).

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

13320120212020 is a wasteful number, since it uses less digits than its factorization.

13320120212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55887780 (or 55887778 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13320120212020 its reverse (2021202102331), we get a palindrome (15341322314351).

The spelling of 13320120212020 in words is "thirteen trillion, three hundred twenty billion, one hundred twenty million, two hundred twelve thousand, twenty".