221332042440001 has 8 divisors (see below), whose sum is σ = 227314220368040. Its totient is φ = 215349876661248.

The previous prime is 221332042439971. The next prime is 221332042440077. The reversal of 221332042440001 is 100044240233122.

It can be written as a sum of positive squares in 4 ways, for example, as 152079703843600 + 69252338596401 = 12332060^2 + 8321799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221332042440001 - 2⁷ = 221332042439873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221332042440101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43327585 + ... + 48165793.

It is an arithmetic number, because the mean of its divisors is an integer number (28414277546005).

Almost surely, 2^{221332042440001} is an apocalyptic number.

It is an amenable number.

221332042440001 is a deficient number, since it is larger than the sum of its proper divisors (5982177928039).

221332042440001 is a wasteful number, since it uses less digits than its factorization.

221332042440001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074643.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 221332042440001 its reverse (100044240233122), we get a palindrome (321376282673123).

The spelling of 221332042440001 in words is "two hundred twenty-one trillion, three hundred thirty-two billion, forty-two million, four hundred forty thousand, one".