5221220226 has 8 divisors (see below), whose sum is σ = 10442440464. Its totient is φ = 1740406740.

The previous prime is 5221220203. The next prime is 5221220231. The reversal of 5221220226 is 6220221225.

It is a happy number.

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

5221220226 is an admirable number.

It is a super-2 number, since 2×5221220226² = 54522281296782982152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5221220196 and 5221220205.

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 in 3 ways as a sum of consecutive naturals, for example, 435101680 + ... + 435101691.

It is an arithmetic number, because the mean of its divisors is an integer number (1305305058).

Almost surely, 2^5221220226 is an apocalyptic number.

5221220226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5221220226 is a wasteful number, since it uses less digits than its factorization.

5221220226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870203376.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 5221220226 is about 72258.0115004558. The cubic root of 5221220226 is about 1734.8316519518.

Subtracting 5221220226 from its reverse (6220221225), we obtain a palindrome (999000999).

The spelling of 5221220226 in words is "five billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-six".