10223213221 has 16 divisors (see below), whose sum is σ = 11083952880. Its totient is φ = 9373224960.

The previous prime is 10223213173. The next prime is 10223213267. The reversal of 10223213221 is 12231232201.

10223213221 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 8 ways, for example, as 3603600900 + 6619612321 = 60030^2 + 81361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10223213221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10223213521) 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 15 ways as a sum of consecutive naturals, for example, 2381445 + ... + 2385733.

It is an arithmetic number, because the mean of its divisors is an integer number (692747055).

Almost surely, 2^10223213221 is an apocalyptic number.

It is an amenable number.

10223213221 is a deficient number, since it is larger than the sum of its proper divisors (860739659).

10223213221 is a wasteful number, since it uses less digits than its factorization.

10223213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10223213221 its reverse (12231232201), we get a palindrome (22454445422).

The spelling of 10223213221 in words is "ten billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred twenty-one".