502106245221 has 24 divisors (see below), whose sum is σ = 790400586720. Its totient is φ = 282635492832.

The previous prime is 502106245213. The next prime is 502106245297. The reversal of 502106245221 is 122542601205.

It is not a de Polignac number, because 502106245221 - 2³ = 502106245213 is a prime.

It is a super-2 number, since 2×502106245221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502106249221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25480366 + ... + 25500063.

It is an arithmetic number, because the mean of its divisors is an integer number (32933357780).

Almost surely, 2^502106245221 is an apocalyptic number.

It is an amenable number.

502106245221 is a deficient number, since it is larger than the sum of its proper divisors (288294341499).

502106245221 is a wasteful number, since it uses less digits than its factorization.

502106245221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50980513 (or 50980506 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 502106245221 its reverse (122542601205), we get a palindrome (624648846426).

The spelling of 502106245221 in words is "five hundred two billion, one hundred six million, two hundred forty-five thousand, two hundred twenty-one".