121040024112 has 640 divisors, whose sum is σ = 425664184320. Its totient is φ = 32188907520.

The previous prime is 121040023991. The next prime is 121040024129. The reversal of 121040024112 is 211420040121.

121040024112 is a `hidden beast` number, since 1 + 2 + 10 + 400 + 241 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 627150288 + ... + 627150480.

It is an arithmetic number, because the mean of its divisors is an integer number (665100288).

Almost surely, 2^121040024112 is an apocalyptic number.

121040024112 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 121040024112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212832092160).

121040024112 is an abundant number, since it is smaller than the sum of its proper divisors (304624160208).

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

121040024112 is a wasteful number, since it uses less digits than its factorization.

121040024112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121040024112 its reverse (211420040121), we get a palindrome (332460064233).

The spelling of 121040024112 in words is "one hundred twenty-one billion, forty million, twenty-four thousand, one hundred twelve".