10353221221 has 12 divisors (see below), whose sum is σ = 12751987788. Its totient is φ = 8352177792.

The previous prime is 10353221209. The next prime is 10353221227. The reversal of 10353221221 is 12212235301.

10353221221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7215653025 + 3137568196 = 84945^2 + 56014^2 .

It is not a de Polignac number, because 10353221221 - 2¹⁵ = 10353188453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10353221192 and 10353221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10353221227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6213586 + ... + 6215251.

It is an arithmetic number, because the mean of its divisors is an integer number (1062665649).

Almost surely, 2^10353221221 is an apocalyptic number.

It is an amenable number.

10353221221 is a deficient number, since it is larger than the sum of its proper divisors (2398766567).

10353221221 is a wasteful number, since it uses less digits than its factorization.

10353221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12428868 (or 12428861 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 10353221221 its reverse (12212235301), we get a palindrome (22565456522).

The spelling of 10353221221 in words is "ten billion, three hundred fifty-three million, two hundred twenty-one thousand, two hundred twenty-one".