121230112 has 24 divisors (see below), whose sum is σ = 244495692. Its totient is φ = 59136000.

The previous prime is 121230097. The next prime is 121230139. The reversal of 121230112 is 211032121.

It can be written as a sum of positive squares in 2 ways, for example, as 120912016 + 318096 = 10996^2 + 564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121230092 and 121230101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44889 + ... + 47512.

Almost surely, 2^121230112 is an apocalyptic number.

It is an amenable number.

121230112 is an abundant number, since it is smaller than the sum of its proper divisors (123265580).

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

121230112 is an equidigital number, since it uses as much as digits as its factorization.

121230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92452 (or 92444 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121230112 is about 11010.4546681779. The cubic root of 121230112 is about 494.9220868426.

Adding to 121230112 its reverse (211032121), we get a palindrome (332262233).

The spelling of 121230112 in words is "one hundred twenty-one million, two hundred thirty thousand, one hundred twelve".