421222 has 8 divisors (see below), whose sum is σ = 659376. Its totient is φ = 201432.

The previous prime is 421207. The next prime is 421241. The reversal of 421222 is 222124.

421222 is nontrivially palindromic in base 16.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4533 + ... + 4624.

It is an arithmetic number, because the mean of its divisors is an integer number (82422).

2⁴²¹²²² is an apocalyptic number.

421222 is a deficient number, since it is larger than the sum of its proper divisors (238154).

421222 is a wasteful number, since it uses less digits than its factorization.

421222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9182.

The product of its digits is 64, while the sum is 13.

The square root of 421222 is about 649.0161785349. The cubic root of 421222 is about 74.9612837211.

Adding to 421222 its reverse (222124), we get a palindrome (643346).

It can be divided in two parts, 42122 and 2, that added together give a palindrome (42124).

The spelling of 421222 in words is "four hundred twenty-one thousand, two hundred twenty-two", and thus it is an iban number.