12001011100 has 54 divisors (see below), whose sum is σ = 28199575320. Its totient is φ = 4431136320.

The previous prime is 12001011091. The next prime is 12001011103. The reversal of 12001011100 is 111010021.

12001011100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001011103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 338160 + ... + 371959.

Almost surely, 2^12001011100 is an apocalyptic number.

12001011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001011100 is an abundant number, since it is smaller than the sum of its proper divisors (16198564220).

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

12001011100 is a wasteful number, since it uses less digits than its factorization.

12001011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710159 (or 710139 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 12001011100 its reverse (111010021), we get a palindrome (12112021121).

The spelling of 12001011100 in words is "twelve billion, one million, eleven thousand, one hundred".