220102221056 has 72 divisors (see below), whose sum is σ = 468322915200. Its totient is φ = 102939033600.

The previous prime is 220102221023. The next prime is 220102221067. The reversal of 220102221056 is 650122201022.

220102221056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 97856 + ... + 670656.

Almost surely, 2^220102221056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220102221056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234161457600).

220102221056 is an abundant number, since it is smaller than the sum of its proper divisors (248220694144).

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

220102221056 is an equidigital number, since it uses as much as digits as its factorization.

220102221056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572915 (or 572901 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 220102221056 its reverse (650122201022), we get a palindrome (870224422078).

The spelling of 220102221056 in words is "two hundred twenty billion, one hundred two million, two hundred twenty-one thousand, fifty-six".