118122100 has 36 divisors (see below), whose sum is σ = 257796000. Its totient is φ = 46977760.

The previous prime is 118122097. The next prime is 118122119. The reversal of 118122100 is 1221811.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 14601 + ... + 21199.

It is an arithmetic number, because the mean of its divisors is an integer number (7161000).

Almost surely, 2^118122100 is an apocalyptic number.

118122100 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 118122100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128898000).

118122100 is an abundant number, since it is smaller than the sum of its proper divisors (139673900).

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

118122100 is a wasteful number, since it uses less digits than its factorization.

118122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6792 (or 6785 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 118122100 is about 10868.3991461484. The cubic root of 118122100 is about 490.6559312183.

Adding to 118122100 its reverse (1221811), we get a palindrome (119343911).

The spelling of 118122100 in words is "one hundred eighteen million, one hundred twenty-two thousand, one hundred".