20112120001100 has 18 divisors (see below), whose sum is σ = 43643300402604. Its totient is φ = 8044848000400.

The previous prime is 20112120001087. The next prime is 20112120001153. The reversal of 20112120001100 is 110002121102.

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, 100560599906 + ... + 100560600105.

Almost surely, 2^{20112120001100} is an apocalyptic number.

20112120001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112120001100 is an abundant number, since it is smaller than the sum of its proper divisors (23531180401504).

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

20112120001100 is a wasteful number, since it uses less digits than its factorization.

20112120001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201121200025 (or 201121200018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20112120001100 its reverse (110002121102), we get a palindrome (20222122122202).

The spelling of 20112120001100 in words is "twenty trillion, one hundred twelve billion, one hundred twenty million, one thousand, one hundred".