212221101230233 has 2 divisors, whose sum is σ = 212221101230234. Its totient is φ = 212221101230232.

The previous prime is 212221101230189. The next prime is 212221101230261. The reversal of 212221101230233 is 332032101122212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134233356871744 + 77987744358489 = 11585912^2 + 8831067^2 .

It is a cyclic number.

It is not a de Polignac number, because 212221101230233 - 2⁴⁵ = 177036729141401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212221101230198 and 212221101230207.

It is not a weakly prime, because it can be changed into another prime (212221101236233) 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, 106110550615116 + 106110550615117.

It is an arithmetic number, because the mean of its divisors is an integer number (106110550615117).

Almost surely, 2^{212221101230233} is an apocalyptic number.

It is an amenable number.

212221101230233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221101230233 is an equidigital number, since it uses as much as digits as its factorization.

212221101230233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212221101230233 its reverse (332032101122212), we get a palindrome (544253202352445).

The spelling of 212221101230233 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred one million, two hundred thirty thousand, two hundred thirty-three".