220555581122 has 6 divisors (see below), whose sum is σ = 330834367929. Its totient is φ = 110277458480.

The previous prime is 220555581089. The next prime is 220555581137. The reversal of 220555581122 is 221185555022.

It can be written as a sum of positive squares in 2 ways, for example, as 201961258801 + 18594322321 = 449401^2 + 136361^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332081.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 498122 + ... + 830202.

Almost surely, 2^220555581122 is an apocalyptic number.

220555581122 is a deficient number, since it is larger than the sum of its proper divisors (110278786807).

220555581122 is an frugal number, since it uses more digits than its factorization.

220555581122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664164 (or 332083 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 220555581122 in words is "two hundred twenty billion, five hundred fifty-five million, five hundred eighty-one thousand, one hundred twenty-two".