221123132233 has 2 divisors, whose sum is σ = 221123132234. Its totient is φ = 221123132232.

The previous prime is 221123132159. The next prime is 221123132273. The reversal of 221123132233 is 332231321122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210338725129 + 10784407104 = 458627^2 + 103848^2 .

It is a cyclic number.

It is not a de Polignac number, because 221123132233 - 2⁹ = 221123131721 is a prime.

It is a super-4 number, since 4×221123132233⁴ (a number of 46 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221123132198 and 221123132207.

It is not a weakly prime, because it can be changed into another prime (221123132273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561566116 + 110561566117.

It is an arithmetic number, because the mean of its divisors is an integer number (110561566117).

Almost surely, 2^221123132233 is an apocalyptic number.

It is an amenable number.

221123132233 is a deficient number, since it is larger than the sum of its proper divisors (1).

221123132233 is an equidigital number, since it uses as much as digits as its factorization.

221123132233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

Adding to 221123132233 its reverse (332231321122), we get a palindrome (553354453355).

The spelling of 221123132233 in words is "two hundred twenty-one billion, one hundred twenty-three million, one hundred thirty-two thousand, two hundred thirty-three".