506220421002 has 16 divisors (see below), whose sum is σ = 1018503364032. Its totient is φ = 167729720000.

The previous prime is 506220421001. The next prime is 506220421027. The reversal of 506220421002 is 200124022605.

It is a happy number.

It is a super-2 number, since 2×506220421002² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (506220421001) 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 7 ways as a sum of consecutive naturals, for example, 252603999 + ... + 252606002.

It is an arithmetic number, because the mean of its divisors is an integer number (63656460252).

Almost surely, 2^506220421002 is an apocalyptic number.

506220421002 is an abundant number, since it is smaller than the sum of its proper divisors (512282943030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506220421002 is a wasteful number, since it uses less digits than its factorization.

506220421002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505210173.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 506220421002 its reverse (200124022605), we get a palindrome (706344443607).

The spelling of 506220421002 in words is "five hundred six billion, two hundred twenty million, four hundred twenty-one thousand, two".