6420224222 has 16 divisors (see below), whose sum is σ = 10235621760. Its totient is φ = 3011631192.

The previous prime is 6420224207. The next prime is 6420224227. The reversal of 6420224222 is 2224220246.

It is a junction number, because it is equal to n+sod(n) for n = 6420224191 and 6420224200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420224227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816248 + ... + 824075.

It is an arithmetic number, because the mean of its divisors is an integer number (639726360).

Almost surely, 2^6420224222 is an apocalyptic number.

6420224222 is a deficient number, since it is larger than the sum of its proper divisors (3815397538).

6420224222 is a wasteful number, since it uses less digits than its factorization.

6420224222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640447.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 6420224222 is about 80126.3016867745. The cubic root of 6420224222 is about 1858.5891546136.

Adding to 6420224222 its reverse (2224220246), we get a palindrome (8644444468).

The spelling of 6420224222 in words is "six billion, four hundred twenty million, two hundred twenty-four thousand, two hundred twenty-two".