12011002112 has 36 divisors (see below), whose sum is σ = 25385394636. Its totient is φ = 5652234240.

The previous prime is 12011002097. The next prime is 12011002151. The reversal of 12011002112 is 21120011021.

It can be written as a sum of positive squares in 2 ways, for example, as 4221880576 + 7789121536 = 64976^2 + 88256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12011002093 and 12011002102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375589 + ... + 1384292.

It is an arithmetic number, because the mean of its divisors is an integer number (705149851).

Almost surely, 2^12011002112 is an apocalyptic number.

It is an amenable number.

12011002112 is an abundant number, since it is smaller than the sum of its proper divisors (13374392524).

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

12011002112 is an equidigital number, since it uses as much as digits as its factorization.

12011002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759914 (or 2759900 counting only the distinct ones).

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

Adding to 12011002112 its reverse (21120011021), we get a palindrome (33131013133).

The spelling of 12011002112 in words is "twelve billion, eleven million, two thousand, one hundred twelve".