22256432000 has 128 divisors (see below), whose sum is σ = 60365990880. Its totient is φ = 8093184000.

The previous prime is 22256431997. The next prime is 22256432047. The reversal of 22256432000 is 23465222.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112772 + ... + 239228.

Almost surely, 2^22256432000 is an apocalyptic number.

22256432000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22256432000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30182995440).

22256432000 is an abundant number, since it is smaller than the sum of its proper divisors (38109558880).

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

22256432000 is a wasteful number, since it uses less digits than its factorization.

22256432000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126497 (or 126475 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 22256432000 its reverse (23465222), we get a palindrome (22279897222).

The spelling of 22256432000 in words is "twenty-two billion, two hundred fifty-six million, four hundred thirty-two thousand".