221243024041 has 8 divisors (see below), whose sum is σ = 238299848640. Its totient is φ = 204191646672.

The previous prime is 221243024021. The next prime is 221243024069. The reversal of 221243024041 is 140420342122.

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

It is not a de Polignac number, because 221243024041 - 2²⁵ = 221209469609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221243023997 and 221243024015.

It is not an unprimeable number, because it can be changed into a prime (221243024021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1277251 + ... + 1440088.

It is an arithmetic number, because the mean of its divisors is an integer number (29787481080).

Almost surely, 2^221243024041 is an apocalyptic number.

It is an amenable number.

221243024041 is a deficient number, since it is larger than the sum of its proper divisors (17056824599).

221243024041 is a wasteful number, since it uses less digits than its factorization.

221243024041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723615.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 221243024041 its reverse (140420342122), we get a palindrome (361663366163).

The spelling of 221243024041 in words is "two hundred twenty-one billion, two hundred forty-three million, twenty-four thousand, forty-one".