52221322342 has 16 divisors (see below), whose sum is σ = 89567143200. Its totient is φ = 22369347648.

The previous prime is 52221322319. The next prime is 52221322379. The reversal of 52221322342 is 24322312225.

It is a self number, because there is not a number n which added to its sum of digits gives 52221322342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905967 + ... + 961882.

It is an arithmetic number, because the mean of its divisors is an integer number (5597946450).

Almost surely, 2^52221322342 is an apocalyptic number.

52221322342 is a deficient number, since it is larger than the sum of its proper divisors (37345820858).

52221322342 is a wasteful number, since it uses less digits than its factorization.

52221322342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869855.

The product of its digits is 11520, while the sum is 28.

Adding to 52221322342 its reverse (24322312225), we get a palindrome (76543634567).

The spelling of 52221322342 in words is "fifty-two billion, two hundred twenty-one million, three hundred twenty-two thousand, three hundred forty-two".