502521222 has 64 divisors (see below), whose sum is σ = 1226649600. Its totient is φ = 134144640.

The previous prime is 502521211. The next prime is 502521223. The reversal of 502521222 is 222125205.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502521223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31104 + ... + 44412.

It is an arithmetic number, because the mean of its divisors is an integer number (19166400).

Almost surely, 2^502521222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 502521222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613324800).

502521222 is an abundant number, since it is smaller than the sum of its proper divisors (724128378).

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

502521222 is a wasteful number, since it uses less digits than its factorization.

502521222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 502521222 is about 22416.9851228929. The cubic root of 502521222 is about 795.0323534161.

Adding to 502521222 its reverse (222125205), we get a palindrome (724646427).

The spelling of 502521222 in words is "five hundred two million, five hundred twenty-one thousand, two hundred twenty-two".