2021021112320 has 192 divisors, whose sum is σ = 5551122507840. Its totient is φ = 691783335936.

The previous prime is 2021021112287. The next prime is 2021021112329. The reversal of 2021021112320 is 232111201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021021112329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44203712 + ... + 44249408.

It is an arithmetic number, because the mean of its divisors is an integer number (28912096395).

Almost surely, 2^{2021021112320} is an apocalyptic number.

2021021112320 is a gapful number since it is divisible by the number (20) 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 2021021112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2775561253920).

2021021112320 is an abundant number, since it is smaller than the sum of its proper divisors (3530101395520).

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

2021021112320 is an equidigital number, since it uses as much as digits as its factorization.

2021021112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46348 (or 46328 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2021021112320 its reverse (232111201202), we get a palindrome (2253132313522).

The spelling of 2021021112320 in words is "two trillion, twenty-one billion, twenty-one million, one hundred twelve thousand, three hundred twenty".