20020100000100 has 72 divisors (see below), whose sum is σ = 57934166246880. Its totient is φ = 5337832174080.

The previous prime is 20020100000011. The next prime is 20020100000107. The reversal of 20020100000100 is 100000102002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (20020100000107) 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, 3518245 + ... + 7240044.

Almost surely, 2^{20020100000100} is an apocalyptic number.

20020100000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020100000100 is an abundant number, since it is smaller than the sum of its proper divisors (37914066246780).

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

20020100000100 is a wasteful number, since it uses less digits than its factorization.

20020100000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10764509 (or 10764502 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20020100000100 its reverse (100000102002), we get a palindrome (20120100102102).

The spelling of 20020100000100 in words is "twenty trillion, twenty billion, one hundred million, one hundred", and thus it is an aban number.