121118688 has 36 divisors (see below), whose sum is σ = 344432088. Its totient is φ = 40372800.

The previous prime is 121118677. The next prime is 121118707. The reversal of 121118688 is 886811121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209988 + ... + 210563.

It is an arithmetic number, because the mean of its divisors is an integer number (9567558).

Almost surely, 2^121118688 is an apocalyptic number.

121118688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121118688 is an abundant number, since it is smaller than the sum of its proper divisors (223313400).

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

121118688 is a wasteful number, since it uses less digits than its factorization.

121118688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420567 (or 420556 counting only the distinct ones).

The product of its digits is 6144, while the sum is 36.

The square root of 121118688 is about 11005.3935867828. The cubic root of 121118688 is about 494.7704108234.

The spelling of 121118688 in words is "one hundred twenty-one million, one hundred eighteen thousand, six hundred eighty-eight".