121110121012 has 12 divisors (see below), whose sum is σ = 212829503040. Its totient is φ = 60301691576.

The previous prime is 121110120997. The next prime is 121110121057. The reversal of 121110121012 is 210121011121.

It is a happy number.

It is a super-2 number, since 2×121110121012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121110120983 and 121110121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63341158 + ... + 63343069.

It is an arithmetic number, because the mean of its divisors is an integer number (17735791920).

Almost surely, 2^121110121012 is an apocalyptic number.

It is an amenable number.

121110121012 is a deficient number, since it is larger than the sum of its proper divisors (91719382028).

121110121012 is a wasteful number, since it uses less digits than its factorization.

121110121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126684470 (or 126684468 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121110121012 its reverse (210121011121), we get a palindrome (331231132133).

The spelling of 121110121012 in words is "one hundred twenty-one billion, one hundred ten million, one hundred twenty-one thousand, twelve".