20212000021100 has 18 divisors (see below), whose sum is σ = 43860040046004. Its totient is φ = 8084800008400.

The previous prime is 20212000021093. The next prime is 20212000021139. The reversal of 20212000021100 is 112000021202.

It is a happy 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, 101060000006 + ... + 101060000205.

Almost surely, 2^{20212000021100} is an apocalyptic number.

20212000021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212000021100 is an abundant number, since it is smaller than the sum of its proper divisors (23648040024904).

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

20212000021100 is a wasteful number, since it uses less digits than its factorization.

20212000021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202120000225 (or 202120000218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20212000021100 its reverse (112000021202), we get a palindrome (20324000042302).

The spelling of 20212000021100 in words is "twenty trillion, two hundred twelve billion, twenty-one thousand, one hundred".