10302434311221 has 12 divisors (see below), whose sum is σ = 16026008928748. Its totient is φ = 6339959576064.

The previous prime is 10302434311163. The next prime is 10302434311243. The reversal of 10302434311221 is 12211343420301.

10302434311221 is a `hidden beast` number, since 1 + 0 + 3 + 0 + 2 + 4 + 3 + 431 + 1 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4592509004196 + 5709925307025 = 2143014^2 + 2389545^2 .

It is not a de Polignac number, because 10302434311221 - 2¹⁰ = 10302434310197 is a prime.

It is a super-2 number, since 2×10302434311221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302434311321) 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, 44027496940 + ... + 44027497173.

Almost surely, 2^{10302434311221} is an apocalyptic number.

It is an amenable number.

10302434311221 is a deficient number, since it is larger than the sum of its proper divisors (5723574617527).

10302434311221 is a wasteful number, since it uses less digits than its factorization.

10302434311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88054994132 (or 88054994129 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 10302434311221 its reverse (12211343420301), we get a palindrome (22513777731522).

The spelling of 10302434311221 in words is "ten trillion, three hundred two billion, four hundred thirty-four million, three hundred eleven thousand, two hundred twenty-one".