220625987912 has 108 divisors (see below), whose sum is σ = 470806834995. Its totient is φ = 96850274400.

The previous prime is 220625987909. The next prime is 220625987929. The reversal of 220625987912 is 219789526022.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

220625987912 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 110312993956 + 110312993956 = 332134^2 + 332134^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332134.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 453030533 + ... + 453031019.

Almost surely, 2^220625987912 is an apocalyptic number.

220625987912 is a gapful number since it is divisible by the number (22) 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 220625987912

220625987912 is an abundant number, since it is smaller than the sum of its proper divisors (250180847083).

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

220625987912 is an equidigital number, since it uses as much as digits as its factorization.

220625987912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 220625987912 in words is "two hundred twenty billion, six hundred twenty-five million, nine hundred eighty-seven thousand, nine hundred twelve".