20001100100212 has 48 divisors (see below), whose sum is σ = 43710656790528. Its totient is φ = 7779798378720.

The previous prime is 20001100100197. The next prime is 20001100100257. The reversal of 20001100100212 is 21200100110002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53304508 + ... + 53678419.

It is an arithmetic number, because the mean of its divisors is an integer number (910638683136).

Almost surely, 2^{20001100100212} is an apocalyptic number.

20001100100212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20001100100212 is an abundant number, since it is smaller than the sum of its proper divisors (23709556690316).

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

20001100100212 is a wasteful number, since it uses less digits than its factorization.

20001100100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106983556 (or 106983554 counting only the distinct ones).

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

Adding to 20001100100212 its reverse (21200100110002), we get a palindrome (41201200210214).

The spelling of 20001100100212 in words is "twenty trillion, one billion, one hundred million, one hundred thousand, two hundred twelve".