121799088 has 60 divisors (see below), whose sum is σ = 347321520. Its totient is φ = 39831168.

The previous prime is 121799087. The next prime is 121799123. The reversal of 121799088 is 880997121.

It is not an unprimeable number, because it can be changed into a prime (121799087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348 + ... + 15611.

It is an arithmetic number, because the mean of its divisors is an integer number (5788692).

Almost surely, 2^121799088 is an apocalyptic number.

121799088 is a gapful number since it is divisible by the number (18) 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 121799088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173660760).

121799088 is an abundant number, since it is smaller than the sum of its proper divisors (225522432).

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

121799088 is a wasteful number, since it uses less digits than its factorization.

121799088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16026 (or 16017 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 121799088 is about 11036.2624107983. The cubic root of 121799088 is about 495.6951604133.

The spelling of 121799088 in words is "one hundred twenty-one million, seven hundred ninety-nine thousand, eighty-eight".