20211100210000 has 200 divisors, whose sum is σ = 57851940453120. Its totient is φ = 6690570432000.

The previous prime is 20211100209983. The next prime is 20211100210009. The reversal of 20211100210000 is 1200111202.

It is a tau number, because it is divible by the number of its divisors (200).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211100210009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2948104 + ... + 7008103.

Almost surely, 2^{20211100210000} is an apocalyptic number.

20211100210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211100210000 is an abundant number, since it is smaller than the sum of its proper divisors (37640840243120).

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

20211100210000 is an equidigital number, since it uses as much as digits as its factorization.

20211100210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9956271 (or 9956250 counting only the distinct ones).

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

Adding to 20211100210000 its reverse (1200111202), we get a palindrome (20212300321202).

The spelling of 20211100210000 in words is "twenty trillion, two hundred eleven billion, one hundred million, two hundred ten thousand".