221332034243 has 2 divisors, whose sum is σ = 221332034244. Its totient is φ = 221332034242.

The previous prime is 221332034233. The next prime is 221332034251. The reversal of 221332034243 is 342430233122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221332034243 - 2¹⁸ = 221331772099 is a prime.

It is not a weakly prime, because it can be changed into another prime (221332034233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110666017121 + 110666017122.

It is an arithmetic number, because the mean of its divisors is an integer number (110666017122).

Almost surely, 2^221332034243 is an apocalyptic number.

221332034243 is a deficient number, since it is larger than the sum of its proper divisors (1).

221332034243 is an equidigital number, since it uses as much as digits as its factorization.

221332034243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 221332034243 its reverse (342430233122), we get a palindrome (563762267365).

The spelling of 221332034243 in words is "two hundred twenty-one billion, three hundred thirty-two million, thirty-four thousand, two hundred forty-three".