20112100011200 has 84 divisors (see below), whose sum is σ = 49493033045232. Its totient is φ = 8044076467200.

The previous prime is 20112100011121. The next prime is 20112100011233. The reversal of 20112100011200 is 211000121102.

It is a super-2 number, since 2×20112100011200² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16418402 + ... + 17600798.

It is an arithmetic number, because the mean of its divisors is an integer number (589202774348).

Almost surely, 2^{20112100011200} is an apocalyptic number.

20112100011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112100011200 is an abundant number, since it is smaller than the sum of its proper divisors (29380933034032).

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

20112100011200 is a wasteful number, since it uses less digits than its factorization.

20112100011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193050 (or 1193035 counting only the distinct ones).

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

Adding to 20112100011200 its reverse (211000121102), we get a palindrome (20323100132302).

The spelling of 20112100011200 in words is "twenty trillion, one hundred twelve billion, one hundred million, eleven thousand, two hundred".