5217221222 has 16 divisors (see below), whose sum is σ = 8288924400. Its totient is φ = 2454348288.

The previous prime is 5217221201. The next prime is 5217221227. The reversal of 5217221222 is 2221227125.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5217221191 and 5217221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5217221227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85529 + ... + 133227.

It is an arithmetic number, because the mean of its divisors is an integer number (518057775).

Almost surely, 2^5217221222 is an apocalyptic number.

5217221222 is a deficient number, since it is larger than the sum of its proper divisors (3071703178).

5217221222 is a wasteful number, since it uses less digits than its factorization.

5217221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50935.

The product of its digits is 2240, while the sum is 26.

The square root of 5217221222 is about 72230.3345001254. The cubic root of 5217221222 is about 1734.3886283947.

Adding to 5217221222 its reverse (2221227125), we get a palindrome (7438448347).

The spelling of 5217221222 in words is "five billion, two hundred seventeen million, two hundred twenty-one thousand, two hundred twenty-two".