20020211202100 has 18 divisors (see below), whose sum is σ = 43443858308774. Its totient is φ = 8008084480800.

The previous prime is 20020211202067. The next prime is 20020211202149. The reversal of 20020211202100 is 120211202002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4416478777764 + 15603732424336 = 2101542^2 + 3950156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100101055911 + ... + 100101056110.

Almost surely, 2^{20020211202100} is an apocalyptic number.

20020211202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020211202100 is an abundant number, since it is smaller than the sum of its proper divisors (23423647106674).

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

20020211202100 is a wasteful number, since it uses less digits than its factorization.

20020211202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200202112035 (or 200202112028 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20020211202100 its reverse (120211202002), we get a palindrome (20140422404102).

The spelling of 20020211202100 in words is "twenty trillion, twenty billion, two hundred eleven million, two hundred two thousand, one hundred".