12021110121112 has 32 divisors (see below), whose sum is σ = 23227586917920. Its totient is φ = 5828842620160.

The previous prime is 12021110121109. The next prime is 12021110121127. The reversal of 12021110121112 is 21112101112021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109674943 + ... + 109784494.

It is an arithmetic number, because the mean of its divisors is an integer number (725862091185).

Almost surely, 2^{12021110121112} is an apocalyptic number.

It is an amenable number.

12021110121112 is a deficient number, since it is larger than the sum of its proper divisors (11206476796808).

12021110121112 is a wasteful number, since it uses less digits than its factorization.

12021110121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219459651 (or 219459647 counting only the distinct ones).

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

Adding to 12021110121112 its reverse (21112101112021), we get a palindrome (33133211233133).

Subtracting 12021110121112 from its reverse (21112101112021), we obtain a palindrome (9090990990909).

The spelling of 12021110121112 in words is "twelve trillion, twenty-one billion, one hundred ten million, one hundred twenty-one thousand, one hundred twelve".