22043400422 has 16 divisors (see below), whose sum is σ = 34530209280. Its totient is φ = 10534094472.

The previous prime is 22043400419. The next prime is 22043400469. The reversal of 22043400422 is 22400434022.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132398 + ... + 248225.

It is an arithmetic number, because the mean of its divisors is an integer number (2158138080).

Almost surely, 2^22043400422 is an apocalyptic number.

22043400422 is a deficient number, since it is larger than the sum of its proper divisors (12486808858).

22043400422 is a wasteful number, since it uses less digits than its factorization.

22043400422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381907.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 22043400422 its reverse (22400434022), we get a palindrome (44443834444).

The spelling of 22043400422 in words is "twenty-two billion, forty-three million, four hundred thousand, four hundred twenty-two".