2021054644224 has 1920 divisors, whose sum is σ = 8099748518400. Its totient is φ = 490497638400.

The previous prime is 2021054644207. The next prime is 2021054644237. The reversal of 2021054644224 is 4224464501202.

2021054644224 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 0 + 5 + 4 + 644 + 2 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 65195311089 + ... + 65195311119.

It is an arithmetic number, because the mean of its divisors is an integer number (4218619020).

Almost surely, 2^{2021054644224} is an apocalyptic number.

2021054644224 is a gapful number since it is divisible by the number (24) 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 2021054644224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4049874259200).

2021054644224 is an abundant number, since it is smaller than the sum of its proper divisors (6078693874176).

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

2021054644224 is an equidigital number, since it uses as much as digits as its factorization.

2021054644224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

The spelling of 2021054644224 in words is "two trillion, twenty-one billion, fifty-four million, six hundred forty-four thousand, two hundred twenty-four".