220220322138 has 96 divisors (see below), whose sum is σ = 491408985600. Its totient is φ = 71251488000.

The previous prime is 220220322107. The next prime is 220220322139. The reversal of 220220322138 is 831223022022.

220220322138 is a `hidden beast` number, since 2 + 202 + 2 + 0 + 322 + 138 = 666.

220220322138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220220322139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27180288 + ... + 27188388.

It is an arithmetic number, because the mean of its divisors is an integer number (5118843600).

Almost surely, 2^220220322138 is an apocalyptic number.

220220322138 is an abundant number, since it is smaller than the sum of its proper divisors (271188663462).

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

220220322138 is a wasteful number, since it uses less digits than its factorization.

220220322138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8508 (or 8505 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 220220322138 in words is "two hundred twenty billion, two hundred twenty million, three hundred twenty-two thousand, one hundred thirty-eight".