221473076882 has 18 divisors (see below), whose sum is σ = 336074131413. Its totient is φ = 109463023824.

The previous prime is 221473076873. The next prime is 221473076887. The reversal of 221473076882 is 288670374122.

221473076882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 197972493481 + 23500583401 = 444941^2 + 153299^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332771.

It is a super-3 number, since 3×221473076882³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221473076882.

It is not an unprimeable number, because it can be changed into a prime (221473076887) 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 8 ways as a sum of consecutive naturals, for example, 59231369 + ... + 59235107.

Almost surely, 2^221473076882 is an apocalyptic number.

221473076882 is a deficient number, since it is larger than the sum of its proper divisors (114601054531).

221473076882 is an frugal number, since it uses more digits than its factorization.

221473076882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658 (or 3830 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

Multiplying 221473076882 by its sum of digits (50), we get a square (11073653844100 = 3327710²).

The spelling of 221473076882 in words is "two hundred twenty-one billion, four hundred seventy-three million, seventy-six thousand, eight hundred eighty-two".