42210423220 has 24 divisors (see below), whose sum is σ = 101305016064. Its totient is φ = 14472145056.

The previous prime is 42210423209. The next prime is 42210423247. The reversal of 42210423220 is 2232401224.

It is a junction number, because it is equal to n+sod(n) for n = 42210423191 and 42210423200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150751372 + ... + 150751651.

It is an arithmetic number, because the mean of its divisors is an integer number (4221042336).

Almost surely, 2^42210423220 is an apocalyptic number.

It is an amenable number.

42210423220 is an abundant number, since it is smaller than the sum of its proper divisors (59094592844).

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

42210423220 is a wasteful number, since it uses less digits than its factorization.

42210423220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301503039 (or 301503037 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 42210423220 its reverse (2232401224), we get a palindrome (44442824444).

The spelling of 42210423220 in words is "forty-two billion, two hundred ten million, four hundred twenty-three thousand, two hundred twenty".