20200021011100 has 72 divisors (see below), whose sum is σ = 50097224246048. Its totient is φ = 6925559443200.

The previous prime is 20200021010999. The next prime is 20200021011133. The reversal of 20200021011100 is 111012000202.

20200021011100 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 31782430 + ... + 32411770.

Almost surely, 2^{20200021011100} is an apocalyptic number.

20200021011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200021011100 is an abundant number, since it is smaller than the sum of its proper divisors (29897203234948).

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

20200021011100 is a wasteful number, since it uses less digits than its factorization.

20200021011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675215 (or 675208 counting only the distinct ones).

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

Adding to 20200021011100 its reverse (111012000202), we get a palindrome (20311033011302).

The spelling of 20200021011100 in words is "twenty trillion, two hundred billion, twenty-one million, eleven thousand, one hundred".