502140221012 has 6 divisors (see below), whose sum is σ = 878745386778. Its totient is φ = 251070110504.

The previous prime is 502140220999. The next prime is 502140221017. The reversal of 502140221012 is 210122041205.

It can be written as a sum of positive squares in only one way, i.e., 485549750596 + 16590470416 = 696814^2 + 128804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502140221017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62767527623 + ... + 62767527630.

It is an arithmetic number, because the mean of its divisors is an integer number (146457564463).

Almost surely, 2^502140221012 is an apocalyptic number.

It is an amenable number.

502140221012 is a deficient number, since it is larger than the sum of its proper divisors (376605165766).

502140221012 is a wasteful number, since it uses less digits than its factorization.

502140221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125535055257 (or 125535055255 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 502140221012 its reverse (210122041205), we get a palindrome (712262262217).

The spelling of 502140221012 in words is "five hundred two billion, one hundred forty million, two hundred twenty-one thousand, twelve".