5221231642 has 8 divisors (see below), whose sum is σ = 8543833632. Its totient is φ = 2373287100.

The previous prime is 5221231577. The next prime is 5221231669. The reversal of 5221231642 is 2461321225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5221231642² = 54522519718844032328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5221231642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118664334 + ... + 118664377.

It is an arithmetic number, because the mean of its divisors is an integer number (1067979204).

Almost surely, 2^5221231642 is an apocalyptic number.

5221231642 is a deficient number, since it is larger than the sum of its proper divisors (3322601990).

5221231642 is a wasteful number, since it uses less digits than its factorization.

5221231642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237328724.

The product of its digits is 5760, while the sum is 28.

The square root of 5221231642 is about 72258.0904951134. The cubic root of 5221231642 is about 1734.8329163320.

Adding to 5221231642 its reverse (2461321225), we get a palindrome (7682552867).

The spelling of 5221231642 in words is "five billion, two hundred twenty-one million, two hundred thirty-one thousand, six hundred forty-two".