12012011012112 has 40 divisors (see below), whose sum is σ = 31031859518400. Its totient is φ = 4003896435840.

The previous prime is 12012011012069. The next prime is 12012011012171. The reversal of 12012011012112 is 21121011021021.

It is a happy number.

It is a super-2 number, since 2×12012011012112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12012011012091 and 12012011012100.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1529964 + ... + 5134667.

It is an arithmetic number, because the mean of its divisors is an integer number (775796487960).

Almost surely, 2^{12012011012112} is an apocalyptic number.

12012011012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012011012112 is an abundant number, since it is smaller than the sum of its proper divisors (19019848506288).

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

12012011012112 is a wasteful number, since it uses less digits than its factorization.

12012011012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702191 (or 6702185 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12012011012112 its reverse (21121011021021), we get a palindrome (33133022033133).

The spelling of 12012011012112 in words is "twelve trillion, twelve billion, eleven million, twelve thousand, one hundred twelve".