22117842880 has 112 divisors (see below), whose sum is σ = 60260276736. Its totient is φ = 7574676480.

The previous prime is 22117842863. The next prime is 22117842881. The reversal of 22117842880 is 8824871122.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22117842881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2160975 + ... + 2171185.

Almost surely, 2^22117842880 is an apocalyptic number.

22117842880 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 22117842880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30130138368).

22117842880 is an abundant number, since it is smaller than the sum of its proper divisors (38142433856).

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

22117842880 is a wasteful number, since it uses less digits than its factorization.

22117842880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11202 (or 11192 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 43.

The spelling of 22117842880 in words is "twenty-two billion, one hundred seventeen million, eight hundred forty-two thousand, eight hundred eighty".