20021111330 has 96 divisors (see below), whose sum is σ = 40675400640. Its totient is φ = 7087414400.

The previous prime is 20021111317. The next prime is 20021111333. The reversal of 20021111330 is 3311112002.

It is not an unprimeable number, because it can be changed into a prime (20021111333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7637420 + ... + 7640040.

It is an arithmetic number, because the mean of its divisors is an integer number (423702090).

Almost surely, 2^20021111330 is an apocalyptic number.

20021111330 is an abundant number, since it is smaller than the sum of its proper divisors (20654289310).

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

20021111330 is a wasteful number, since it uses less digits than its factorization.

20021111330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20021111330 its reverse (3311112002), we get a palindrome (23332223332).

The spelling of 20021111330 in words is "twenty billion, twenty-one million, one hundred eleven thousand, three hundred thirty".