20102020201100 has 72 divisors (see below), whose sum is σ = 43728576192000. Its totient is φ = 8021054260800.

The previous prime is 20102020201097. The next prime is 20102020201111. The reversal of 20102020201100 is 110202020102.

It is a happy number.

It is a super-4 number, since 4×20102020201100⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

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, 362831201 + ... + 362886599.

It is an arithmetic number, because the mean of its divisors is an integer number (607341336000).

Almost surely, 2^{20102020201100} is an apocalyptic number.

20102020201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102020201100 is an abundant number, since it is smaller than the sum of its proper divisors (23626555990900).

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

20102020201100 is a wasteful number, since it uses less digits than its factorization.

20102020201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64263 (or 64256 counting only the distinct ones).

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

Adding to 20102020201100 its reverse (110202020102), we get a palindrome (20212222221202).

The spelling of 20102020201100 in words is "twenty trillion, one hundred two billion, twenty million, two hundred one thousand, one hundred".