118221124 has 48 divisors (see below), whose sum is σ = 243040000. Its totient is φ = 50295168.

The previous prime is 118221113. The next prime is 118221149. The reversal of 118221124 is 421122811.

It is a junction number, because it is equal to n+sod(n) for n = 118221095 and 118221104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272812 + ... + 273244.

Almost surely, 2^118221124 is an apocalyptic number.

118221124 is a gapful number since it is divisible by the number (14) 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 118221124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121520000).

118221124 is an abundant number, since it is smaller than the sum of its proper divisors (124818876).

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

118221124 is a wasteful number, since it uses less digits than its factorization.

118221124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 641 counting only the distinct ones).

The product of its digits is 256, while the sum is 22.

The square root of 118221124 is about 10872.9537845058. The cubic root of 118221124 is about 490.7930016513.

Adding to 118221124 its reverse (421122811), we get a palindrome (539343935).

The spelling of 118221124 in words is "one hundred eighteen million, two hundred twenty-one thousand, one hundred twenty-four".