118821120 has 288 divisors, whose sum is σ = 432673920. Its totient is φ = 27525120.

The previous prime is 118821119. The next prime is 118821133. The reversal of 118821120 is 21128811.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1224912 + ... + 1225008.

It is an arithmetic number, because the mean of its divisors is an integer number (1502340).

Almost surely, 2^118821120 is an apocalyptic number.

118821120 is a gapful number since it is divisible by the number (10) 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 118821120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216336960).

118821120 is an abundant number, since it is smaller than the sum of its proper divisors (313852800).

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

118821120 is a wasteful number, since it uses less digits than its factorization.

118821120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

The square root of 118821120 is about 10900.5100798082. The cubic root of 118821120 is about 491.6218920572.

Adding to 118821120 its reverse (21128811), we get a palindrome (139949931).

The spelling of 118821120 in words is "one hundred eighteen million, eight hundred twenty-one thousand, one hundred twenty".