20022321 has 8 divisors (see below), whose sum is σ = 29123424. Its totient is φ = 12134720.

The previous prime is 20022283. The next prime is 20022323. The reversal of 20022321 is 12322002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20022321 - 2⁷ = 20022193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20022297 and 20022306.

It is not an unprimeable number, because it can be changed into a prime (20022323) 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, 303336 + ... + 303401.

It is an arithmetic number, because the mean of its divisors is an integer number (3640428).

Almost surely, 2^20022321 is an apocalyptic number.

It is an amenable number.

20022321 is a deficient number, since it is larger than the sum of its proper divisors (9101103).

20022321 is a wasteful number, since it uses less digits than its factorization.

20022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606751.

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

The square root of 20022321 is about 4474.6308227607. The cubic root of 20022321 is about 271.5427049756.

Adding to 20022321 its reverse (12322002), we get a palindrome (32344323).

The spelling of 20022321 in words is "twenty million, twenty-two thousand, three hundred twenty-one".