221232322373 has 2 divisors, whose sum is σ = 221232322374. Its totient is φ = 221232322372.

The previous prime is 221232322331. The next prime is 221232322463. The reversal of 221232322373 is 373223232122.

221232322373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210219499009 + 11012823364 = 458497^2 + 104942^2 .

It is a cyclic number.

It is not a de Polignac number, because 221232322373 - 2¹⁶ = 221232256837 is a prime.

It is a super-2 number, since 2×221232322373² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221232322313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616161186 + 110616161187.

It is an arithmetic number, because the mean of its divisors is an integer number (110616161187).

Almost surely, 2^221232322373 is an apocalyptic number.

It is an amenable number.

221232322373 is a deficient number, since it is larger than the sum of its proper divisors (1).

221232322373 is an equidigital number, since it uses as much as digits as its factorization.

221232322373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 32.

Adding to 221232322373 its reverse (373223232122), we get a palindrome (594455554495).

The spelling of 221232322373 in words is "two hundred twenty-one billion, two hundred thirty-two million, three hundred twenty-two thousand, three hundred seventy-three".