20224222 has 16 divisors (see below), whose sum is σ = 31893120. Its totient is φ = 9599832.

The previous prime is 20224207. The next prime is 20224229. The reversal of 20224222 is 22242202.

It is a junction number, because it is equal to n+sod(n) for n = 20224196 and 20224205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4813 + ... + 7975.

It is an arithmetic number, because the mean of its divisors is an integer number (1993320).

Almost surely, 2^20224222 is an apocalyptic number.

20224222 is a deficient number, since it is larger than the sum of its proper divisors (11668898).

20224222 is a wasteful number, since it uses less digits than its factorization.

20224222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 20224222 is about 4497.1348656673. The cubic root of 20224222 is about 272.4523812087.

Adding to 20224222 its reverse (22242202), we get a palindrome (42466424).

The spelling of 20224222 in words is "twenty million, two hundred twenty-four thousand, two hundred twenty-two".