42122220122442 has 32 divisors (see below), whose sum is σ = 84682211640192. Its totient is φ = 13967780327424.

The previous prime is 42122220122387. The next prime is 42122220122453. The reversal of 42122220122442 is 24422102222124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89646163 + ... + 90114809.

It is an arithmetic number, because the mean of its divisors is an integer number (2646319113756).

Almost surely, 2^{42122220122442} is an apocalyptic number.

42122220122442 is an abundant number, since it is smaller than the sum of its proper divisors (42559991517750).

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

42122220122442 is a wasteful number, since it uses less digits than its factorization.

42122220122442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546462.

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 42122220122442 its reverse (24422102222124), we get a palindrome (66544322344566).

The spelling of 42122220122442 in words is "forty-two trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, four hundred forty-two".