121210011112 has 32 divisors (see below), whose sum is σ = 231161400000. Its totient is φ = 59567332608.

The previous prime is 121210011107. The next prime is 121210011157. The reversal of 121210011112 is 211110012121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121210011092 and 121210011101.

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, 3133264 + ... + 3171712.

It is an arithmetic number, because the mean of its divisors is an integer number (7223793750).

Almost surely, 2^121210011112 is an apocalyptic number.

It is an amenable number.

121210011112 is a deficient number, since it is larger than the sum of its proper divisors (109951388888).

121210011112 is a wasteful number, since it uses less digits than its factorization.

121210011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45193 (or 45189 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121210011112 its reverse (211110012121), we get a palindrome (332320023233).

The spelling of 121210011112 in words is "one hundred twenty-one billion, two hundred ten million, eleven thousand, one hundred twelve".