8222420220 has 96 divisors (see below), whose sum is σ = 26335507968. Its totient is φ = 1877713152.

The previous prime is 8222420197. The next prime is 8222420231. The reversal of 8222420220 is 220242228.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 490294 + ... + 506786.

It is an arithmetic number, because the mean of its divisors is an integer number (274328208).

Almost surely, 2^8222420220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8222420220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13167753984).

8222420220 is an abundant number, since it is smaller than the sum of its proper divisors (18113087748).

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

8222420220 is a wasteful number, since it uses less digits than its factorization.

8222420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17699 (or 17697 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 8222420220 is about 90677.5618331239. The cubic root of 8222420220 is about 2018.3658498723.

Adding to 8222420220 its reverse (220242228), we get a palindrome (8442662448).

The spelling of 8222420220 in words is "eight billion, two hundred twenty-two million, four hundred twenty thousand, two hundred twenty".