421022 has 32 divisors (see below), whose sum is σ = 803520. Its totient is φ = 161280.

The previous prime is 421019. The next prime is 421033. The reversal of 421022 is 220124.

It is a junction number, because it is equal to n+sod(n) for n = 420994 and 421012.

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 15 ways as a sum of consecutive naturals, for example, 6872 + ... + 6932.

It is an arithmetic number, because the mean of its divisors is an integer number (25110).

2⁴²¹⁰²² is an apocalyptic number.

421022 is a deficient number, since it is larger than the sum of its proper divisors (382498).

421022 is a wasteful number, since it uses less digits than its factorization.

421022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 421022 is about 648.8620808770. The cubic root of 421022 is about 74.9494177453.

Adding to 421022 its reverse (220124), we get a palindrome (641146).

It can be divided in two parts, 42 and 1022, that multiplied together give a palindrome (42924).

The spelling of 421022 in words is "four hundred twenty-one thousand, twenty-two", and thus it is an iban number.