42121242422 has 8 divisors (see below), whose sum is σ = 72207844176. Its totient is φ = 18051961032.

The previous prime is 42121242413. The next prime is 42121242439. The reversal of 42121242422 is 22424212124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42121242391 and 42121242400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504330073 + ... + 1504330100.

It is an arithmetic number, because the mean of its divisors is an integer number (9025980522).

Almost surely, 2^42121242422 is an apocalyptic number.

42121242422 is a deficient number, since it is larger than the sum of its proper divisors (30086601754).

42121242422 is a wasteful number, since it uses less digits than its factorization.

42121242422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008660182.

The product of its digits is 4096, while the sum is 26.

Adding to 42121242422 its reverse (22424212124), we get a palindrome (64545454546).

The spelling of 42121242422 in words is "forty-two billion, one hundred twenty-one million, two hundred forty-two thousand, four hundred twenty-two".