20120020200100 has 36 divisors (see below), whose sum is σ = 43671585395200. Its totient is φ = 8045954336160.

The previous prime is 20120020200067. The next prime is 20120020200143. The reversal of 20120020200100 is 100202002102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25277940 + ... + 26061739.

Almost surely, 2^{20120020200100} is an apocalyptic number.

20120020200100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120020200100 is an abundant number, since it is smaller than the sum of its proper divisors (23551565195100).

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

20120020200100 is a wasteful number, since it uses less digits than its factorization.

20120020200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51343612 (or 51343605 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20120020200100 its reverse (100202002102), we get a palindrome (20220222202202).

The spelling of 20120020200100 in words is "twenty trillion, one hundred twenty billion, twenty million, two hundred thousand, one hundred".