20021128096 has 24 divisors (see below), whose sum is σ = 41491154880. Its totient is φ = 9483691968.

The previous prime is 20021128051. The next prime is 20021128097. The reversal of 20021128096 is 69082112002.

It is not an unprimeable number, because it can be changed into a prime (20021128097) 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, 16464136 + ... + 16465351.

It is an arithmetic number, because the mean of its divisors is an integer number (1728798120).

Almost surely, 2^20021128096 is an apocalyptic number.

It is an amenable number.

20021128096 is an abundant number, since it is smaller than the sum of its proper divisors (21470026784).

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

20021128096 is a wasteful number, since it uses less digits than its factorization.

20021128096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32929516 (or 32929508 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 20021128096 in words is "twenty billion, twenty-one million, one hundred twenty-eight thousand, ninety-six".