12001121111000 has 192 divisors, whose sum is σ = 33464316412800. Its totient is φ = 4014311616000.

The previous prime is 12001121110991. The next prime is 12001121111011. The reversal of 12001121111000 is 11112110021.

It is a super-3 number, since 3×12001121111000³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 977840 + ... + 4995839.

It is an arithmetic number, because the mean of its divisors is an integer number (174293314650).

Almost surely, 2^{12001121111000} is an apocalyptic number.

12001121111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001121111000 is an abundant number, since it is smaller than the sum of its proper divisors (21463195301800).

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

12001121111000 is a wasteful number, since it uses less digits than its factorization.

12001121111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5973755 (or 5973734 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12001121111000 its reverse (11112110021), we get a palindrome (12012233221021).

The spelling of 12001121111000 in words is "twelve trillion, one billion, one hundred twenty-one million, one hundred eleven thousand".