20200012010100 has 216 divisors, whose sum is σ = 68191802783832. Its totient is φ = 4971906662400.

The previous prime is 20200012010099. The next prime is 20200012010137. The reversal of 20200012010100 is 101021000202.

It can be written as a sum of positive squares in 12 ways, for example, as 9944928059364 + 10255083950736 = 3153558^2 + 3202356^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 159442780 + ... + 159569420.

Almost surely, 2^{20200012010100} is an apocalyptic number.

20200012010100 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 20200012010100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34095901391916).

20200012010100 is an abundant number, since it is smaller than the sum of its proper divisors (47991790773732).

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

20200012010100 is a wasteful number, since it uses less digits than its factorization.

20200012010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140307 (or 140297 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20200012010100 its reverse (101021000202), we get a palindrome (20301033010302).

The spelling of 20200012010100 in words is "twenty trillion, two hundred billion, twelve million, ten thousand, one hundred".