42222 has 16 divisors (see below), whose sum is σ = 87552. Its totient is φ = 13560.

The previous prime is 42221. The next prime is 42223. The reversal of 42222 is 22224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42221) and next prime (42223).

42222 is a modest number, since divided by 222 gives 42 as remainder.

It is a plaindrome in base 8 and base 14.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 42198 and 42207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 299.

It is an arithmetic number, because the mean of its divisors is an integer number (5472).

2⁴²²²² is an apocalyptic number.

42222 is an abundant number, since it is smaller than the sum of its proper divisors (45330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43776).

42222 is a wasteful number, since it uses less digits than its factorization.

42222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its digits is 64, while the sum is 12.

The square root of 42222 is about 205.4799260269. The cubic root of 42222 is about 34.8214031370.

Adding to 42222 its reverse (22224), we get a palindrome (64446).

It can be divided in two parts, 4222 and 2, that added together give a palindrome (4224).

The spelling of 42222 in words is "forty-two thousand, two hundred twenty-two", and thus it is an iban number.