531322222 has 4 divisors (see below), whose sum is σ = 796983336. Its totient is φ = 265661110.

The previous prime is 531322219. The next prime is 531322243. The reversal of 531322222 is 222223135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222223135 = 5 ⋅44444627.

It is a junction number, because it is equal to n+sod(n) for n = 531322193 and 531322202.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 132830554 + ... + 132830557.

It is an arithmetic number, because the mean of its divisors is an integer number (199245834).

Almost surely, 2^531322222 is an apocalyptic number.

531322222 is a deficient number, since it is larger than the sum of its proper divisors (265661114).

531322222 is a wasteful number, since it uses less digits than its factorization.

531322222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265661113.

The product of its digits is 1440, while the sum is 22.

The square root of 531322222 is about 23050.4278051406. The cubic root of 531322222 is about 809.9396500279.

Adding to 531322222 its reverse (222223135), we get a palindrome (753545357).

The spelling of 531322222 in words is "five hundred thirty-one million, three hundred twenty-two thousand, two hundred twenty-two".