22031422 has 16 divisors (see below), whose sum is σ = 39990240. Its totient is φ = 8886528.

The previous prime is 22031419. The next prime is 22031423. The reversal of 22031422 is 22413022.

It is a junction number, because it is equal to n+sod(n) for n = 22031396 and 22031405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031423) by changing a digit.

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, 46047 + ... + 46522.

It is an arithmetic number, because the mean of its divisors is an integer number (2499390).

Almost surely, 2^22031422 is an apocalyptic number.

22031422 is a deficient number, since it is larger than the sum of its proper divisors (17958818).

22031422 is a wasteful number, since it uses less digits than its factorization.

22031422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92595.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22031422 is about 4693.7641610971. The cubic root of 22031422 is about 280.3372721494.

Adding to 22031422 its reverse (22413022), we get a palindrome (44444444).

The spelling of 22031422 in words is "twenty-two million, thirty-one thousand, four hundred twenty-two".