121201102112 has 48 divisors (see below), whose sum is σ = 245061936000. Its totient is φ = 58983494400.

The previous prime is 121201102111. The next prime is 121201102123. The reversal of 121201102112 is 211201102121.

It is not an unprimeable number, because it can be changed into a prime (121201102111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127112 + ... + 508487.

It is an arithmetic number, because the mean of its divisors is an integer number (5105457000).

Almost surely, 2^121201102112 is an apocalyptic number.

It is an amenable number.

121201102112 is an abundant number, since it is smaller than the sum of its proper divisors (123860833888).

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

121201102112 is a wasteful number, since it uses less digits than its factorization.

121201102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635769 (or 635761 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121201102112 its reverse (211201102121), we get a palindrome (332402204233).

Subtracting 121201102112 from its reverse (211201102121), we obtain a palindrome (90000000009).

The spelling of 121201102112 in words is "one hundred twenty-one billion, two hundred one million, one hundred two thousand, one hundred twelve".