42120433122 has 16 divisors (see below), whose sum is σ = 84242877120. Its totient is φ = 14039809232.

The previous prime is 42120433099. The next prime is 42120433133. The reversal of 42120433122 is 22133402124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42120433092 and 42120433101.

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, 459868 + ... + 543800.

It is an arithmetic number, because the mean of its divisors is an integer number (5265179820).

Almost surely, 2^42120433122 is an apocalyptic number.

42120433122 is an abundant number, since it is smaller than the sum of its proper divisors (42122443998).

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

42120433122 is a wasteful number, since it uses less digits than its factorization.

42120433122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167577.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42120433122 its reverse (22133402124), we get a palindrome (64253835246).

The spelling of 42120433122 in words is "forty-two billion, one hundred twenty million, four hundred thirty-three thousand, one hundred twenty-two".