12000020011100 has 108 divisors (see below), whose sum is σ = 28780667830824. Its totient is φ = 4339534320000.

The previous prime is 12000020011051. The next prime is 12000020011121. The reversal of 12000020011100 is 111002000021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 549506 + ... + 4929705.

Almost surely, 2^{12000020011100} is an apocalyptic number.

12000020011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000020011100 is an abundant number, since it is smaller than the sum of its proper divisors (16780647819724).

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

12000020011100 is a wasteful number, since it uses less digits than its factorization.

12000020011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479428 (or 5479410 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12000020011100 its reverse (111002000021), we get a palindrome (12111022011121).

The spelling of 12000020011100 in words is "twelve trillion, twenty million, eleven thousand, one hundred".