2021022320 has 40 divisors (see below), whose sum is σ = 4701219936. Its totient is φ = 808005888.

The previous prime is 2021022299. The next prime is 2021022323. The reversal of 2021022320 is 232201202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2021022295 and 2021022304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021022323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195194 + ... + 205286.

Almost surely, 2^2021022320 is an apocalyptic number.

2021022320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021022320 is an abundant number, since it is smaller than the sum of its proper divisors (2680197616).

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

2021022320 is a wasteful number, since it uses less digits than its factorization.

2021022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609 (or 12603 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2021022320 is about 44955.7818305944. The cubic root of 2021022320 is about 1264.3200833083.

Adding to 2021022320 its reverse (232201202), we get a palindrome (2253223522).

The spelling of 2021022320 in words is "two billion, twenty-one million, twenty-two thousand, three hundred twenty".