120121121112 has 16 divisors (see below), whose sum is σ = 300302802840. Its totient is φ = 40040373696.

The previous prime is 120121121077. The next prime is 120121121137. The reversal of 120121121112 is 211121121021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120121121091 and 120121121100.

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, 2502523333 + ... + 2502523380.

Almost surely, 2^120121121112 is an apocalyptic number.

120121121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120121121112 is an abundant number, since it is smaller than the sum of its proper divisors (180181681728).

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

120121121112 is a wasteful number, since it uses less digits than its factorization.

120121121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005046722 (or 5005046718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120121121112 its reverse (211121121021), we get a palindrome (331242242133).

Subtracting 120121121112 from its reverse (211121121021), we obtain a palindrome (90999999909).

The spelling of 120121121112 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twelve".