121179912 has 128 divisors (see below), whose sum is σ = 359424000. Its totient is φ = 33331968.

The previous prime is 121179881. The next prime is 121179937. The reversal of 121179912 is 219971121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813214 + ... + 813362.

It is an arithmetic number, because the mean of its divisors is an integer number (2808000).

Almost surely, 2^121179912 is an apocalyptic number.

121179912 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 121179912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179712000).

121179912 is an abundant number, since it is smaller than the sum of its proper divisors (238244088).

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

121179912 is a wasteful number, since it uses less digits than its factorization.

121179912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 311 counting only the distinct ones).

The product of its digits is 2268, while the sum is 33.

The square root of 121179912 is about 11008.1747805892. The cubic root of 121179912 is about 494.8537635565.

The spelling of 121179912 in words is "one hundred twenty-one million, one hundred seventy-nine thousand, nine hundred twelve".