6721912101120 has 144 divisors (see below), whose sum is σ = 21471412374720. Its totient is φ = 1792233889792.

The previous prime is 6721912101109. The next prime is 6721912101127. The reversal of 6721912101120 is 211012191276.

It is not an unprimeable number, because it can be changed into a prime (6721912101127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25439122 + ... + 25701998.

It is an arithmetic number, because the mean of its divisors is an integer number (149107030380).

Almost surely, 2^{6721912101120} is an apocalyptic number.

6721912101120 is a gapful number since it is divisible by the number (60) 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 6721912101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10735706187360).

6721912101120 is an abundant number, since it is smaller than the sum of its proper divisors (14749500273600).

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

6721912101120 is a wasteful number, since it uses less digits than its factorization.

6721912101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269560 (or 269546 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 33.

Adding to 6721912101120 its reverse (211012191276), we get a palindrome (6932924292396).

The spelling of 6721912101120 in words is "six trillion, seven hundred twenty-one billion, nine hundred twelve million, one hundred one thousand, one hundred twenty".