118422220 has 72 divisors (see below), whose sum is σ = 291589200. Its totient is φ = 40279680.

The previous prime is 118422211. The next prime is 118422257. The reversal of 118422220 is 22224811.

It is a junction number, because it is equal to n+sod(n) for n = 118422191 and 118422200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145615 + ... + 146425.

It is an arithmetic number, because the mean of its divisors is an integer number (4049850).

Almost surely, 2^118422220 is an apocalyptic number.

118422220 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 118422220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145794600).

118422220 is an abundant number, since it is smaller than the sum of its proper divisors (173166980).

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

118422220 is a wasteful number, since it uses less digits than its factorization.

118422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 118422220 is about 10882.1973883954. The cubic root of 118422220 is about 491.0711262298.

The spelling of 118422220 in words is "one hundred eighteen million, four hundred twenty-two thousand, two hundred twenty".