22421040404 has 48 divisors (see below), whose sum is σ = 46054794240. Its totient is φ = 9350365440.

The previous prime is 22421040403. The next prime is 22421040407. The reversal of 22421040404 is 40404012422.

It is a self number, because there is not a number n which added to its sum of digits gives 22421040404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421040403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 421469 + ... + 471675.

It is an arithmetic number, because the mean of its divisors is an integer number (959474880).

Almost surely, 2^22421040404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22421040404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23027397120).

22421040404 is an abundant number, since it is smaller than the sum of its proper divisors (23633753836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22421040404 is a wasteful number, since it uses less digits than its factorization.

22421040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50648 (or 50646 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 22421040404 its reverse (40404012422), we get a palindrome (62825052826).

The spelling of 22421040404 in words is "twenty-two billion, four hundred twenty-one million, forty thousand, four hundred four".