13101121021220 has 48 divisors (see below), whose sum is σ = 27824682574080. Its totient is φ = 5180970829056.

The previous prime is 13101121021171. The next prime is 13101121021277. The reversal of 13101121021220 is 2212012110131.

It is a happy number.

13101121021220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15214739 + ... + 16052741.

It is an arithmetic number, because the mean of its divisors is an integer number (579680886960).

Almost surely, 2^{13101121021220} is an apocalyptic number.

13101121021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13101121021220 is an abundant number, since it is smaller than the sum of its proper divisors (14723561552860).

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

13101121021220 is a wasteful number, since it uses less digits than its factorization.

13101121021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846884 (or 846882 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 13101121021220 its reverse (2212012110131), we get a palindrome (15313133131351).

It can be divided in two parts, 1310112 and 1021220, that added together give a palindrome (2331332).

The spelling of 13101121021220 in words is "thirteen trillion, one hundred one billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty".