22111044432 has 80 divisors (see below), whose sum is σ = 59675287680. Its totient is φ = 7045696000.

The previous prime is 22111044409. The next prime is 22111044437. The reversal of 22111044432 is 23444011122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111044437) 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, 61957 + ... + 219227.

It is an arithmetic number, because the mean of its divisors is an integer number (745941096).

Almost surely, 2^22111044432 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 22111044432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29837643840).

22111044432 is an abundant number, since it is smaller than the sum of its proper divisors (37564243248).

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

22111044432 is a wasteful number, since it uses less digits than its factorization.

22111044432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157412 (or 157406 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 22111044432 its reverse (23444011122), we get a palindrome (45555055554).

The spelling of 22111044432 in words is "twenty-two billion, one hundred eleven million, forty-four thousand, four hundred thirty-two".