121131102111112 has 16 divisors (see below), whose sum is σ = 227123164224000. Its totient is φ = 60564924984720.

The previous prime is 121131102111109. The next prime is 121131102111221. The reversal of 121131102111112 is 211111201131121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121131102111112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77436064 + ... + 78984847.

It is an arithmetic number, because the mean of its divisors is an integer number (14195197764000).

Almost surely, 2^{121131102111112} is an apocalyptic number.

It is an amenable number.

121131102111112 is a deficient number, since it is larger than the sum of its proper divisors (105992062112888).

121131102111112 is a wasteful number, since it uses less digits than its factorization.

121131102111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156517716 (or 156517712 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 19.

Adding to 121131102111112 its reverse (211111201131121), we get a palindrome (332242303242233).

The spelling of 121131102111112 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, one hundred two million, one hundred eleven thousand, one hundred twelve".