12012111020000 has 360 divisors, whose sum is σ = 36571107512016. Its totient is φ = 3801627648000.

The previous prime is 12012111019981. The next prime is 12012111020033. The reversal of 12012111020000 is 2011121021.

It is a super-2 number, since 2×12012111020000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 23406152 + ... + 23913848.

Almost surely, 2^{12012111020000} is an apocalyptic number.

12012111020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012111020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18285553756008).

12012111020000 is an abundant number, since it is smaller than the sum of its proper divisors (24558996492016).

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

12012111020000 is an equidigital number, since it uses as much as digits as its factorization.

12012111020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507760 (or 507724 counting only the distinct ones).

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

Adding to 12012111020000 its reverse (2011121021), we get a palindrome (12014122141021).

The spelling of 12012111020000 in words is "twelve trillion, twelve billion, one hundred eleven million, twenty thousand".