42221412242 has 8 divisors (see below), whose sum is σ = 63660264636. Its totient is φ = 21001324032.

The previous prime is 42221412241. The next prime is 42221412257. The reversal of 42221412242 is 24221412224.

It can be written as a sum of positive squares in 2 ways, for example, as 40400598001 + 1820814241 = 200999^2 + 42671^2 .

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 (42221412241) 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, 54690563 + ... + 54691334.

Almost surely, 2^42221412242 is an apocalyptic number.

42221412242 is a deficient number, since it is larger than the sum of its proper divisors (21438852394).

42221412242 is a wasteful number, since it uses less digits than its factorization.

42221412242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109382092.

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

Adding to 42221412242 its reverse (24221412224), we get a palindrome (66442824466).

The spelling of 42221412242 in words is "forty-two billion, two hundred twenty-one million, four hundred twelve thousand, two hundred forty-two".