42220222442 has 8 divisors (see below), whose sum is σ = 63331702500. Its totient is φ = 21109654944.

The previous prime is 42220222439. The next prime is 42220222453. The reversal of 42220222442 is 24422202224.

It can be written as a sum of positive squares in 2 ways, for example, as 27552348121 + 14667874321 = 165989^2 + 121111^2 .

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

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, 97517 + ... + 306512.

Almost surely, 2^42220222442 is an apocalyptic number.

42220222442 is a deficient number, since it is larger than the sum of its proper divisors (21111480058).

42220222442 is a wasteful number, since it uses less digits than its factorization.

42220222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456280.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 42220222442 its reverse (24422202224), we get a palindrome (66642424666).

The spelling of 42220222442 in words is "forty-two billion, two hundred twenty million, two hundred twenty-two thousand, four hundred forty-two".