20330102021100 has 72 divisors (see below), whose sum is σ = 58827531338688. Its totient is φ = 5420828788800.

The previous prime is 20330102021087. The next prime is 20330102021101. The reversal of 20330102021100 is 112020103302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20330102021100.

It is not an unprimeable number, because it can be changed into a prime (20330102021101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255034 + ... + 6381633.

Almost surely, 2^{20330102021100} is an apocalyptic number.

20330102021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330102021100 is an abundant number, since it is smaller than the sum of its proper divisors (38497429317588).

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

20330102021100 is a wasteful number, since it uses less digits than its factorization.

20330102021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646895 (or 6646888 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20330102021100 its reverse (112020103302), we get a palindrome (20442122124402).

The spelling of 20330102021100 in words is "twenty trillion, three hundred thirty billion, one hundred two million, twenty-one thousand, one hundred".