121041042112 has 14 divisors (see below), whose sum is σ = 240190818068. Its totient is φ = 60520521024.

The previous prime is 121041042107. The next prime is 121041042149. The reversal of 121041042112 is 211240140121.

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 121041042112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 945633078 + ... + 945633205.

Almost surely, 2^121041042112 is an apocalyptic number.

It is an amenable number.

121041042112 is a deficient number, since it is larger than the sum of its proper divisors (119149775956).

121041042112 is an equidigital number, since it uses as much as digits as its factorization.

121041042112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891266295 (or 1891266285 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121041042112 its reverse (211240140121), we get a palindrome (332281182233).

The spelling of 121041042112 in words is "one hundred twenty-one billion, forty-one million, forty-two thousand, one hundred twelve".