20021019096 has 64 divisors (see below), whose sum is σ = 54406598400. Its totient is φ = 6102730368.

The previous prime is 20021019091. The next prime is 20021019097. The reversal of 20021019096 is 69091012002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021019091) 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, 266476 + ... + 333243.

It is an arithmetic number, because the mean of its divisors is an integer number (850103100).

Almost surely, 2^20021019096 is an apocalyptic number.

20021019096 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20021019096 is an abundant number, since it is smaller than the sum of its proper divisors (34385579304).

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

20021019096 is a wasteful number, since it uses less digits than its factorization.

20021019096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599848 (or 599844 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 20021019096 in words is "twenty billion, twenty-one million, nineteen thousand, ninety-six".