500221202001 has 4 divisors (see below), whose sum is σ = 666961602672. Its totient is φ = 333480801332.

The previous prime is 500221201981. The next prime is 500221202003. The reversal of 500221202001 is 100202122005.

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 500221202001 - 2¹³ = 500221193809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (500221202003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83370200331 + ... + 83370200336.

It is an arithmetic number, because the mean of its divisors is an integer number (166740400668).

Almost surely, 2^500221202001 is an apocalyptic number.

It is an amenable number.

500221202001 is a deficient number, since it is larger than the sum of its proper divisors (166740400671).

500221202001 is a wasteful number, since it uses less digits than its factorization.

500221202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166740400670.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 500221202001 its reverse (100202122005), we get a palindrome (600423324006).

The spelling of 500221202001 in words is "five hundred billion, two hundred twenty-one million, two hundred two thousand, one".