648222022 has 16 divisors (see below), whose sum is σ = 1112009472. Its totient is φ = 277616520.

The previous prime is 648222017. The next prime is 648222037. The reversal of 648222022 is 220222846.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5833 + ... + 36475.

It is an arithmetic number, because the mean of its divisors is an integer number (69500592).

Almost surely, 2^648222022 is an apocalyptic number.

648222022 is a deficient number, since it is larger than the sum of its proper divisors (463787450).

648222022 is a wasteful number, since it uses less digits than its factorization.

648222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32163.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 648222022 is about 25460.2046731757. The cubic root of 648222022 is about 865.4485614962.

Adding to 648222022 its reverse (220222846), we get a palindrome (868444868).

The spelling of 648222022 in words is "six hundred forty-eight million, two hundred twenty-two thousand, twenty-two".