20000212100100 has 144 divisors (see below), whose sum is σ = 64299221461440. Its totient is φ = 5333203814400.

The previous prime is 20000212100041. The next prime is 20000212100111. The reversal of 20000212100100 is 100121200002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88536295 + ... + 88761905.

It is an arithmetic number, because the mean of its divisors is an integer number (446522371260).

Almost surely, 2^{20000212100100} is an apocalyptic number.

20000212100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000212100100 is an abundant number, since it is smaller than the sum of its proper divisors (44299009361340).

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

20000212100100 is a wasteful number, since it uses less digits than its factorization.

20000212100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258467 (or 258454 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20000212100100 its reverse (100121200002), we get a palindrome (20100333300102).

The spelling of 20000212100100 in words is "twenty trillion, two hundred twelve million, one hundred thousand, one hundred".