42242123220 has 48 divisors (see below), whose sum is σ = 129030487488. Its totient is φ = 10240514560.

The previous prime is 42242123207. The next prime is 42242123227. The reversal of 42242123220 is 2232124224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242123227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32000949 + ... + 32002268.

It is an arithmetic number, because the mean of its divisors is an integer number (2688135156).

Almost surely, 2^42242123220 is an apocalyptic number.

It is an amenable number.

42242123220 is an abundant number, since it is smaller than the sum of its proper divisors (86788364268).

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

42242123220 is a wasteful number, since it uses less digits than its factorization.

42242123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64003240 (or 64003238 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 42242123220 its reverse (2232124224), we get a palindrome (44474247444).

The spelling of 42242123220 in words is "forty-two billion, two hundred forty-two million, one hundred twenty-three thousand, two hundred twenty".