221304042432041 has 8 divisors (see below), whose sum is σ = 221785382263368. Its totient is φ = 220822708176000.

The previous prime is 221304042432007. The next prime is 221304042432071. The reversal of 221304042432041 is 140234240403122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27358172094016 + 193945870338025 = 5230504^2 + 13926445^2 .

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 221304042432041 - 2⁶ = 221304042431977 is a prime.

It is a super-2 number, since 2×221304042432041² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221304042431989 and 221304042432007.

It is not an unprimeable number, because it can be changed into a prime (221304042432071) 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, 83725931 + ... + 86328671.

It is an arithmetic number, because the mean of its divisors is an integer number (27723172782921).

Almost surely, 2^{221304042432041} is an apocalyptic number.

It is an amenable number.

221304042432041 is a deficient number, since it is larger than the sum of its proper divisors (481339831327).

221304042432041 is a wasteful number, since it uses less digits than its factorization.

221304042432041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787643.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 221304042432041 its reverse (140234240403122), we get a palindrome (361538282835163).

The spelling of 221304042432041 in words is "two hundred twenty-one trillion, three hundred four billion, forty-two million, four hundred thirty-two thousand, forty-one".