5221122664 has 16 divisors (see below), whose sum is σ = 9804425220. Its totient is φ = 2606609280.

The previous prime is 5221122631. The next prime is 5221122691. The reversal of 5221122664 is 4662211225.

It can be written as a sum of positive squares in 2 ways, for example, as 5070864100 + 150258564 = 71210^2 + 12258^2 .

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 3 ways as a sum of consecutive naturals, for example, 488389 + ... + 498964.

Almost surely, 2^5221122664 is an apocalyptic number.

It is an amenable number.

5221122664 is a deficient number, since it is larger than the sum of its proper divisors (4583302556).

5221122664 is a wasteful number, since it uses less digits than its factorization.

5221122664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988020 (or 988016 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 5221122664 is about 72257.3364026104. The cubic root of 5221122664 is about 1734.8208463870.

Adding to 5221122664 its reverse (4662211225), we get a palindrome (9883333889).

The spelling of 5221122664 in words is "five billion, two hundred twenty-one million, one hundred twenty-two thousand, six hundred sixty-four".