422222 has 8 divisors (see below), whose sum is σ = 639576. Its totient is φ = 209032.

The previous prime is 422209. The next prime is 422231. The reversal of 422222 is 222224.

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

422222 is a modest number, since divided by 2222 gives 42 as remainder.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 422197 and 422206.

It is a congruent number.

It is an unprimeable number.

422222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (79947).

2⁴²²²²² is an apocalyptic number.

422222 is a deficient number, since it is larger than the sum of its proper divisors (217354).

422222 is a wasteful number, since it uses less digits than its factorization.

422222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082.

The product of its digits is 128, while the sum is 14.

The square root of 422222 is about 649.7861186575. The cubic root of 422222 is about 75.0205573277.

Adding to 422222 its reverse (222224), we get a palindrome (644446).

It can be divided in two parts, 42222 and 2, that added together give a palindrome (42224).

The spelling of 422222 in words is "four hundred twenty-two thousand, two hundred twenty-two", and thus it is an iban number.