121130112 has 64 divisors (see below), whose sum is σ = 323062560. Its totient is φ = 40212480.

The previous prime is 121130101. The next prime is 121130137. The reversal of 121130112 is 211031121.

It is a tau number, because it is divible by the number of its divisors (64).

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

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, 126628 + ... + 127580.

Almost surely, 2^121130112 is an apocalyptic number.

121130112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161531280).

121130112 is an abundant number, since it is smaller than the sum of its proper divisors (201932448).

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

121130112 is an equidigital number, since it uses as much as digits as its factorization.

121130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1289 counting only the distinct ones).

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

The square root of 121130112 is about 11005.9125927839. The cubic root of 121130112 is about 494.7859660322.

Adding to 121130112 its reverse (211031121), we get a palindrome (332161233).

The spelling of 121130112 in words is "one hundred twenty-one million, one hundred thirty thousand, one hundred twelve".