10211033330221 has 2 divisors, whose sum is σ = 10211033330222. Its totient is φ = 10211033330220.

The previous prime is 10211033330189. The next prime is 10211033330231. The reversal of 10211033330221 is 12203333011201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9265850768196 + 945182562025 = 3043986^2 + 972205^2 .

It is a cyclic number.

It is not a de Polignac number, because 10211033330221 - 2⁵ = 10211033330189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10211033330192 and 10211033330201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10211033330231) 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, 5105516665110 + 5105516665111.

It is an arithmetic number, because the mean of its divisors is an integer number (5105516665111).

Almost surely, 2^{10211033330221} is an apocalyptic number.

It is an amenable number.

10211033330221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211033330221 is an equidigital number, since it uses as much as digits as its factorization.

10211033330221 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 22.

Adding to 10211033330221 its reverse (12203333011201), we get a palindrome (22414366341422).

The spelling of 10211033330221 in words is "ten trillion, two hundred eleven billion, thirty-three million, three hundred thirty thousand, two hundred twenty-one".