5221220222 has 8 divisors (see below), whose sum is σ = 7964573400. Its totient is φ = 2566362424.

The previous prime is 5221220203. The next prime is 5221220231. The reversal of 5221220222 is 2220221225.

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

It is a super-2 number, since 2×5221220222² = 54522281213243458568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5221220194 and 5221220203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22123697 + ... + 22123932.

It is an arithmetic number, because the mean of its divisors is an integer number (995571675).

Almost surely, 2^5221220222 is an apocalyptic number.

5221220222 is a deficient number, since it is larger than the sum of its proper divisors (2743353178).

5221220222 is a wasteful number, since it uses less digits than its factorization.

5221220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44247690.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 5221220222 is about 72258.0114727772. The cubic root of 5221220222 is about 1734.8316515087.

Adding to 5221220222 its reverse (2220221225), we get a palindrome (7441441447).

The spelling of 5221220222 in words is "five billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".