16221101333 has 2 divisors, whose sum is σ = 16221101334. Its totient is φ = 16221101332.

The previous prime is 16221101321. The next prime is 16221101341. The reversal of 16221101333 is 33310112261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16056184369 + 164916964 = 126713^2 + 12842^2 .

It is a cyclic number.

It is not a de Polignac number, because 16221101333 - 2⁶ = 16221101269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16221101299 and 16221101308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16221121333) 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, 8110550666 + 8110550667.

It is an arithmetic number, because the mean of its divisors is an integer number (8110550667).

Almost surely, 2^16221101333 is an apocalyptic number.

It is an amenable number.

16221101333 is a deficient number, since it is larger than the sum of its proper divisors (1).

16221101333 is an equidigital number, since it uses as much as digits as its factorization.

16221101333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 16221101333 its reverse (33310112261), we get a palindrome (49531213594).

The spelling of 16221101333 in words is "sixteen billion, two hundred twenty-one million, one hundred one thousand, three hundred thirty-three".