42242223220 has 24 divisors (see below), whose sum is σ = 93926826504. Its totient is φ = 15902954496.

The previous prime is 42242223209. The next prime is 42242223227. The reversal of 42242223220 is 2232224224.

It can be written as a sum of positive squares in 4 ways, for example, as 11812211856 + 30430011364 = 108684^2 + 174442^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242223227) 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, 62120577 + ... + 62121256.

It is an arithmetic number, because the mean of its divisors is an integer number (3913617771).

Almost surely, 2^42242223220 is an apocalyptic number.

It is an amenable number.

42242223220 is an abundant number, since it is smaller than the sum of its proper divisors (51684603284).

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

42242223220 is a wasteful number, since it uses less digits than its factorization.

42242223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124241859 (or 124241857 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 42242223220 its reverse (2232224224), we get a palindrome (44474447444).

The spelling of 42242223220 in words is "forty-two billion, two hundred forty-two million, two hundred twenty-three thousand, two hundred twenty".