121001101112 has 8 divisors (see below), whose sum is σ = 226877064600. Its totient is φ = 60500550552.

The previous prime is 121001101103. The next prime is 121001101187. The reversal of 121001101112 is 211101100121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121001101093 and 121001101102.

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, 7562568812 + ... + 7562568827.

It is an arithmetic number, because the mean of its divisors is an integer number (28359633075).

Almost surely, 2^121001101112 is an apocalyptic number.

It is an amenable number.

121001101112 is a deficient number, since it is larger than the sum of its proper divisors (105875963488).

121001101112 is a wasteful number, since it uses less digits than its factorization.

121001101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15125137645 (or 15125137641 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121001101112 its reverse (211101100121), we get a palindrome (332102201233).

Subtracting 121001101112 from its reverse (211101100121), we obtain a palindrome (90099999009).

The spelling of 121001101112 in words is "one hundred twenty-one billion, one million, one hundred one thousand, one hundred twelve".