22056320000 has 440 divisors, whose sum is σ = 64997031792. Its totient is φ = 7372800000.

The previous prime is 22056319991. The next prime is 22056320003. The reversal of 22056320000 is 2365022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (440).

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22056320003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 91519880 + ... + 91520120.

Almost surely, 2^22056320000 is an apocalyptic number.

22056320000 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 22056320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32498515896).

22056320000 is an abundant number, since it is smaller than the sum of its proper divisors (42940711792).

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

22056320000 is a wasteful number, since it uses less digits than its factorization.

22056320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 22056320000 its reverse (2365022), we get a palindrome (22058685022).

The spelling of 22056320000 in words is "twenty-two billion, fifty-six million, three hundred twenty thousand".