121133121112 has 8 divisors (see below), whose sum is σ = 227124602100. Its totient is φ = 60566560552.

The previous prime is 121133121091. The next prime is 121133121127. The reversal of 121133121112 is 211121331121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 121133121112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7570820062 + ... + 7570820077.

Almost surely, 2^121133121112 is an apocalyptic number.

It is an amenable number.

121133121112 is a deficient number, since it is larger than the sum of its proper divisors (105991480988).

121133121112 is a wasteful number, since it uses less digits than its factorization.

121133121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15141640145 (or 15141640141 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

Adding to 121133121112 its reverse (211121331121), we get a palindrome (332254452233).

The spelling of 121133121112 in words is "one hundred twenty-one billion, one hundred thirty-three million, one hundred twenty-one thousand, one hundred twelve".