121121110112 has 48 divisors (see below), whose sum is σ = 245942246592. Its totient is φ = 58685107200.

The previous prime is 121121110091. The next prime is 121121110141. The reversal of 121121110112 is 211011121121.

121121110112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 246773 + ... + 550580.

It is an arithmetic number, because the mean of its divisors is an integer number (5123796804).

Almost surely, 2^121121110112 is an apocalyptic number.

It is an amenable number.

121121110112 is an abundant number, since it is smaller than the sum of its proper divisors (124821136480).

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

121121110112 is a wasteful number, since it uses less digits than its factorization.

121121110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797511 (or 797503 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121121110112 its reverse (211011121121), we get a palindrome (332132231233).

The spelling of 121121110112 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred ten thousand, one hundred twelve".