121211110112 has 24 divisors (see below), whose sum is σ = 238974837192. Its totient is φ = 60519088000.

The previous prime is 121211110073. The next prime is 121211110129. The reversal of 121211110112 is 211011112121.

121211110112 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 3 ways as a sum of consecutive naturals, for example, 2679314 + ... + 2724177.

It is an arithmetic number, because the mean of its divisors is an integer number (9957284883).

Almost surely, 2^121211110112 is an apocalyptic number.

It is an amenable number.

121211110112 is a deficient number, since it is larger than the sum of its proper divisors (117763727080).

121211110112 is an equidigital number, since it uses as much as digits as its factorization.

121211110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404202 (or 5404194 counting only the distinct ones).

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

Adding to 121211110112 its reverse (211011112121), we get a palindrome (332222222233).

The spelling of 121211110112 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred ten thousand, one hundred twelve".