2022321 has 32 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 1070784.

The previous prime is 2022301. The next prime is 2022329. The reversal of 2022321 is 1232202.

It is not a de Polignac number, because 2022321 - 2⁵ = 2022289 is a prime.

It is a Curzon number.

2022321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2022297 and 2022306.

It is not an unprimeable number, because it can be changed into a prime (2022329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25560 + ... + 25638.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^2022321 is an apocalyptic number.

2022321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2022321 is a deficient number, since it is larger than the sum of its proper divisors (1295439).

2022321 is a wasteful number, since it uses less digits than its factorization.

2022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2022321 is about 1422.0833308917. The cubic root of 2022321 is about 126.4590836649.

Adding to 2022321 its reverse (1232202), we get a palindrome (3254523).

The spelling of 2022321 in words is "two million, twenty-two thousand, three hundred twenty-one".