42224321522 has 8 divisors (see below), whose sum is σ = 63571934700. Its totient is φ = 21033676624.

The previous prime is 42224321521. The next prime is 42224321549. The reversal of 42224321522 is 22512342224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35766752641 + 6457568881 = 189121^2 + 80359^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42224321521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39241397 + ... + 39242472.

Almost surely, 2^42224321522 is an apocalyptic number.

42224321522 is a deficient number, since it is larger than the sum of its proper divisors (21347613178).

42224321522 is a wasteful number, since it uses less digits than its factorization.

42224321522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78484140.

The product of its digits is 15360, while the sum is 29.

Adding to 42224321522 its reverse (22512342224), we get a palindrome (64736663746).

The spelling of 42224321522 in words is "forty-two billion, two hundred twenty-four million, three hundred twenty-one thousand, five hundred twenty-two".