4220421222 has 16 divisors (see below), whose sum is σ = 8447932080. Its totient is φ = 1405625472.

The previous prime is 4220421203. The next prime is 4220421229. The reversal of 4220421222 is 2221240224.

It is a super-2 number, since 2×4220421222² = 35623910582215946568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220421229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287647 + ... + 301962.

It is an arithmetic number, because the mean of its divisors is an integer number (527995755).

Almost surely, 2^4220421222 is an apocalyptic number.

4220421222 is an abundant number, since it is smaller than the sum of its proper divisors (4227510858).

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

4220421222 is a wasteful number, since it uses less digits than its factorization.

4220421222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590807.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4220421222 is about 64964.7690829422. The cubic root of 4220421222 is about 1616.0393546093.

Adding to 4220421222 its reverse (2221240224), we get a palindrome (6441661446).

The spelling of 4220421222 in words is "four billion, two hundred twenty million, four hundred twenty-one thousand, two hundred twenty-two".