121102120012 has 24 divisors (see below), whose sum is σ = 214648232960. Its totient is φ = 59774317200.

The previous prime is 121102120003. The next prime is 121102120019. The reversal of 121102120012 is 210021201121.

It is a junction number, because it is equal to n+sod(n) for n = 121102119974 and 121102120001.

It is not an unprimeable number, because it can be changed into a prime (121102120019) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2008813 + ... + 2068219.

Almost surely, 2^121102120012 is an apocalyptic number.

It is an amenable number.

121102120012 is a deficient number, since it is larger than the sum of its proper divisors (93546112948).

121102120012 is a wasteful number, since it uses less digits than its factorization.

121102120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65941 (or 65939 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121102120012 its reverse (210021201121), we get a palindrome (331123321133).

The spelling of 121102120012 in words is "one hundred twenty-one billion, one hundred two million, one hundred twenty thousand, twelve".