221343033024443 has 16 divisors (see below), whose sum is σ = 241827479050752. Its totient is φ = 200919062736000.

The previous prime is 221343033024433. The next prime is 221343033024479. The reversal of 221343033024443 is 344420330343122.

It is a cyclic number.

It is not a de Polignac number, because 221343033024443 - 2⁸ = 221343033024187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221343033024397 and 221343033024406.

It is not an unprimeable number, because it can be changed into a prime (221343033024413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50879858 + ... + 55058568.

It is an arithmetic number, because the mean of its divisors is an integer number (15114217440672).

Almost surely, 2^{221343033024443} is an apocalyptic number.

221343033024443 is a deficient number, since it is larger than the sum of its proper divisors (20484446026309).

221343033024443 is a wasteful number, since it uses less digits than its factorization.

221343033024443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185946.

The product of its (nonzero) digits is 497664, while the sum is 38.

Adding to 221343033024443 its reverse (344420330343122), we get a palindrome (565763363367565).

The spelling of 221343033024443 in words is "two hundred twenty-one trillion, three hundred forty-three billion, thirty-three million, twenty-four thousand, four hundred forty-three".