20221322 has 16 divisors (see below), whose sum is σ = 33217344. Its totient is φ = 9156000.

The previous prime is 20221319. The next prime is 20221343. The reversal of 20221322 is 22312202.

It is a junction number, because it is equal to n+sod(n) for n = 20221297 and 20221306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4547 + ... + 7817.

It is an arithmetic number, because the mean of its divisors is an integer number (2076084).

Almost surely, 2^20221322 is an apocalyptic number.

20221322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20221322 is a deficient number, since it is larger than the sum of its proper divisors (12996022).

20221322 is a wasteful number, since it uses less digits than its factorization.

20221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565.

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

The square root of 20221322 is about 4496.8124265973. The cubic root of 20221322 is about 272.4393580514.

Adding to 20221322 its reverse (22312202), we get a palindrome (42533524).

The spelling of 20221322 in words is "twenty million, two hundred twenty-one thousand, three hundred twenty-two".