121201111001112 has 16 divisors (see below), whose sum is σ = 303002777502840. Its totient is φ = 40400370333696.

The previous prime is 121201111001107. The next prime is 121201111001203. The reversal of 121201111001112 is 211100111102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201111001091 and 121201111001100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525023145833 + ... + 2525023145880.

Almost surely, 2^{121201111001112} is an apocalyptic number.

121201111001112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121201111001112 is an abundant number, since it is smaller than the sum of its proper divisors (181801666501728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121201111001112 is a wasteful number, since it uses less digits than its factorization.

121201111001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050046291722 (or 5050046291718 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121201111001112 its reverse (211100111102121), we get a palindrome (332301222103233).

The spelling of 121201111001112 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred eleven million, one thousand, one hundred twelve".