20201001102100 has 432 divisors, whose sum is σ = 56169398678400. Its totient is φ = 6167316879360.

The previous prime is 20201001102077. The next prime is 20201001102263. The reversal of 20201001102100 is 120110010202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5554301482 + ... + 5554305118.

It is an arithmetic number, because the mean of its divisors is an integer number (130021756200).

Almost surely, 2^{20201001102100} is an apocalyptic number.

20201001102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201001102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28084699339200).

20201001102100 is an abundant number, since it is smaller than the sum of its proper divisors (35968397576300).

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

20201001102100 is a wasteful number, since it uses less digits than its factorization.

20201001102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332 (or 5312 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20201001102100 its reverse (120110010202), we get a palindrome (20321111112302).

The spelling of 20201001102100 in words is "twenty trillion, two hundred one billion, one million, one hundred two thousand, one hundred".