121112010120 has 32 divisors (see below), whose sum is σ = 363336030720. Its totient is φ = 32296536000.

The previous prime is 121112010073. The next prime is 121112010161. The reversal of 121112010120 is 21010211121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 121112010096 and 121112010105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504633256 + ... + 504633495.

It is an arithmetic number, because the mean of its divisors is an integer number (11354250960).

Almost surely, 2^121112010120 is an apocalyptic number.

121112010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112010120 is an abundant number, since it is smaller than the sum of its proper divisors (242224020600).

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

121112010120 is a wasteful number, since it uses less digits than its factorization.

121112010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009266765 (or 1009266761 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121112010120 its reverse (21010211121), we get a palindrome (142122221241).

The spelling of 121112010120 in words is "one hundred twenty-one billion, one hundred twelve million, ten thousand, one hundred twenty".