42420130220 has 24 divisors (see below), whose sum is σ = 95934756624. Its totient is φ = 15662817216.

The previous prime is 42420130187. The next prime is 42420130241. The reversal of 42420130220 is 2203102424.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42420130192 and 42420130201.

It is an unprimeable number.

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, 81576914 + ... + 81577433.

It is an arithmetic number, because the mean of its divisors is an integer number (3997281526).

Almost surely, 2^42420130220 is an apocalyptic number.

It is an amenable number.

42420130220 is an abundant number, since it is smaller than the sum of its proper divisors (53514626404).

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

42420130220 is a wasteful number, since it uses less digits than its factorization.

42420130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163154369 (or 163154367 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 42420130220 its reverse (2203102424), we get a palindrome (44623232644).

The spelling of 42420130220 in words is "forty-two billion, four hundred twenty million, one hundred thirty thousand, two hundred twenty".