10302253221 has 16 divisors (see below), whose sum is σ = 14798137536. Its totient is φ = 6337637376.

The previous prime is 10302253201. The next prime is 10302253237. The reversal of 10302253221 is 12235220301.

10302253221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-10302253221 is a prime.

It is a super-2 number, since 2×10302253221² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302253201) 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, 70981 + ... + 160133.

It is an arithmetic number, because the mean of its divisors is an integer number (924883596).

Almost surely, 2^10302253221 is an apocalyptic number.

It is an amenable number.

10302253221 is a deficient number, since it is larger than the sum of its proper divisors (4495884315).

10302253221 is a wasteful number, since it uses less digits than its factorization.

10302253221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92132.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 10302253221 its reverse (12235220301), we get a palindrome (22537473522).

The spelling of 10302253221 in words is "ten billion, three hundred two million, two hundred fifty-three thousand, two hundred twenty-one".