22109052928 has 56 divisors (see below), whose sum is σ = 44338295880. Its totient is φ = 11023810560.

The previous prime is 22109052899. The next prime is 22109052929. The reversal of 22109052928 is 82925090122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109052929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3101208 + ... + 3108328.

Almost surely, 2^22109052928 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 22109052928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22169147940).

22109052928 is an abundant number, since it is smaller than the sum of its proper divisors (22229242952).

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

22109052928 is an frugal number, since it uses more digits than its factorization.

22109052928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526 (or 7502 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 22109052928 in words is "twenty-two billion, one hundred nine million, fifty-two thousand, nine hundred twenty-eight".