220118222408 has 128 divisors (see below), whose sum is σ = 500077670400. Its totient is φ = 88797325056.

The previous prime is 220118222377. The next prime is 220118222437. The reversal of 220118222408 is 804222811022.

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, 28111838 + ... + 28119666.

It is an arithmetic number, because the mean of its divisors is an integer number (3906856800).

Almost surely, 2^220118222408 is an apocalyptic number.

220118222408 is a gapful number since it is divisible by the number (28) 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 220118222408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250038835200).

220118222408 is an abundant number, since it is smaller than the sum of its proper divisors (279959447992).

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

220118222408 is a wasteful number, since it uses less digits than its factorization.

220118222408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211 (or 8207 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 220118222408 in words is "two hundred twenty billion, one hundred eighteen million, two hundred twenty-two thousand, four hundred eight".