12012112121000 has 64 divisors (see below), whose sum is σ = 28112009402880. Its totient is φ = 4804218004800.

The previous prime is 12012112120951. The next prime is 12012112121041. The reversal of 12012112121000 is 12121121021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6923297 + ... + 8482703.

It is an arithmetic number, because the mean of its divisors is an integer number (439250146920).

Almost surely, 2^{12012112121000} is an apocalyptic number.

12012112121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012112121000 is an abundant number, since it is smaller than the sum of its proper divisors (16099897281880).

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

12012112121000 is a wasteful number, since it uses less digits than its factorization.

12012112121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567131 (or 1567117 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12012112121000 its reverse (12121121021), we get a palindrome (12024233242021).

The spelling of 12012112121000 in words is "twelve trillion, twelve billion, one hundred twelve million, one hundred twenty-one thousand".