472208339221 has 4 divisors (see below), whose sum is σ = 473298890092. Its totient is φ = 471117788352.

The previous prime is 472208339219. The next prime is 472208339237. The reversal of 472208339221 is 122933802274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94611608100 + 377596731121 = 307590^2 + 614489^2 .

It is a cyclic number.

It is not a de Polignac number, because 472208339221 - 2¹ = 472208339219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472208739221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545274786 + ... + 545275651.

It is an arithmetic number, because the mean of its divisors is an integer number (118324722523).

Almost surely, 2^472208339221 is an apocalyptic number.

It is an amenable number.

472208339221 is a deficient number, since it is larger than the sum of its proper divisors (1090550871).

472208339221 is a wasteful number, since it uses less digits than its factorization.

472208339221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090550870.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 472208339221 in words is "four hundred seventy-two billion, two hundred eight million, three hundred thirty-nine thousand, two hundred twenty-one".