10233445221 has 12 divisors (see below), whose sum is σ = 14839162572. Its totient is φ = 6795749376.

The previous prime is 10233445153. The next prime is 10233445231. The reversal of 10233445221 is 12254433201.

10233445221 is a `hidden beast` number, since 102 + 3 + 34 + 4 + 522 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8133514596 + 2099930625 = 90186^2 + 45825^2 .

It is not a de Polignac number, because 10233445221 - 2⁹ = 10233444709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10233445231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2209846 + ... + 2214471.

It is an arithmetic number, because the mean of its divisors is an integer number (1236596881).

Almost surely, 2^10233445221 is an apocalyptic number.

It is an amenable number.

10233445221 is a deficient number, since it is larger than the sum of its proper divisors (4605717351).

10233445221 is a wasteful number, since it uses less digits than its factorization.

10233445221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424580 (or 4424577 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 10233445221 its reverse (12254433201), we get a palindrome (22487878422).

The spelling of 10233445221 in words is "ten billion, two hundred thirty-three million, four hundred forty-five thousand, two hundred twenty-one".