221223333013 has 2 divisors, whose sum is σ = 221223333014. Its totient is φ = 221223333012.

The previous prime is 221223332999. The next prime is 221223333047. The reversal of 221223333013 is 310333322122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216431509284 + 4791823729 = 465222^2 + 69223^2 .

It is a cyclic number.

It is not a de Polignac number, because 221223333013 - 2²¹ = 221221235861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221223333073) 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 as a sum of consecutive naturals, namely, 110611666506 + 110611666507.

It is an arithmetic number, because the mean of its divisors is an integer number (110611666507).

Almost surely, 2^221223333013 is an apocalyptic number.

It is an amenable number.

221223333013 is a deficient number, since it is larger than the sum of its proper divisors (1).

221223333013 is an equidigital number, since it uses as much as digits as its factorization.

221223333013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 221223333013 its reverse (310333322122), we get a palindrome (531556655135).

The spelling of 221223333013 in words is "two hundred twenty-one billion, two hundred twenty-three million, three hundred thirty-three thousand, thirteen".