12011120021000 has 64 divisors (see below), whose sum is σ = 28229836452480. Its totient is φ = 4783282948800.

The previous prime is 12011120020997. The next prime is 12011120021041. The reversal of 12011120021000 is 12002111021.

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, 26229212 + ... + 26683211.

It is an arithmetic number, because the mean of its divisors is an integer number (441091194570).

Almost surely, 2^{12011120021000} is an apocalyptic number.

12011120021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011120021000 is an abundant number, since it is smaller than the sum of its proper divisors (16218716431480).

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

12011120021000 is a wasteful number, since it uses less digits than its factorization.

12011120021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52912671 (or 52912657 counting only the distinct ones).

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

Adding to 12011120021000 its reverse (12002111021), we get a palindrome (12023122132021).

The spelling of 12011120021000 in words is "twelve trillion, eleven billion, one hundred twenty million, twenty-one thousand".