20212021002320 has 160 divisors (see below), whose sum is σ = 56128459548672. Its totient is φ = 6618227083776.

The previous prime is 20212021002289. The next prime is 20212021002323. The reversal of 20212021002320 is 2320012021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212021002323) 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 31 ways as a sum of consecutive naturals, for example, 7061579 + ... + 9502101.

Almost surely, 2^{20212021002320} is an apocalyptic number.

20212021002320 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 20212021002320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28064229774336).

20212021002320 is an abundant number, since it is smaller than the sum of its proper divisors (35916438546352).

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

20212021002320 is a wasteful number, since it uses less digits than its factorization.

20212021002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441209 (or 2441203 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20212021002320 its reverse (2320012021202), we get a palindrome (22532033023522).

The spelling of 20212021002320 in words is "twenty trillion, two hundred twelve billion, twenty-one million, two thousand, three hundred twenty".