10502513425221 has 4 divisors (see below), whose sum is σ = 14003351233632. Its totient is φ = 7001675616812.

The previous prime is 10502513425207. The next prime is 10502513425297. The reversal of 10502513425221 is 12252431520501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10502513425221 - 2⁷ = 10502513425093 is a prime.

It is a super-2 number, since 2×10502513425221² (a number of 27 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 (10502513421221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750418904201 + ... + 1750418904206.

It is an arithmetic number, because the mean of its divisors is an integer number (3500837808408).

Almost surely, 2^{10502513425221} is an apocalyptic number.

It is an amenable number.

10502513425221 is a deficient number, since it is larger than the sum of its proper divisors (3500837808411).

10502513425221 is an equidigital number, since it uses as much as digits as its factorization.

10502513425221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500837808410.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 10502513425221 its reverse (12252431520501), we get a palindrome (22754944945722).

The spelling of 10502513425221 in words is "ten trillion, five hundred two billion, five hundred thirteen million, four hundred twenty-five thousand, two hundred twenty-one".