121110121112 has 8 divisors (see below), whose sum is σ = 227081477100. Its totient is φ = 60555060552.

The previous prime is 121110121061. The next prime is 121110121147. The reversal of 121110121112 is 211121011121.

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

It is a super-2 number, since 2×121110121112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7569382562 + ... + 7569382577.

Almost surely, 2^121110121112 is an apocalyptic number.

It is an amenable number.

121110121112 is a deficient number, since it is larger than the sum of its proper divisors (105971355988).

121110121112 is a wasteful number, since it uses less digits than its factorization.

121110121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15138765145 (or 15138765141 counting only the distinct ones).

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

Adding to 121110121112 its reverse (211121011121), we get a palindrome (332231132233).

The spelling of 121110121112 in words is "one hundred twenty-one billion, one hundred ten million, one hundred twenty-one thousand, one hundred twelve".