422222005 has 8 divisors (see below), whose sum is σ = 506870712. Its totient is φ = 337641408.

The previous prime is 422221993. The next prime is 422222051. The reversal of 422222005 is 500222224.

It can be written as a sum of positive squares in 4 ways, for example, as 66031876 + 356190129 = 8126^2 + 18873^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422222005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2214 + ... + 29143.

It is an arithmetic number, because the mean of its divisors is an integer number (63358839).

Almost surely, 2^422222005 is an apocalyptic number.

It is an amenable number.

422222005 is a deficient number, since it is larger than the sum of its proper divisors (84648707).

422222005 is a wasteful number, since it uses less digits than its factorization.

422222005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34055.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 422222005 is about 20548.0413908479. The cubic root of 422222005 is about 750.2055762387.

Adding to 422222005 its reverse (500222224), we get a palindrome (922444229).

The spelling of 422222005 in words is "four hundred twenty-two million, two hundred twenty-two thousand, five".