421214222 has 16 divisors (see below), whose sum is σ = 742280112. Its totient is φ = 176733120.

The previous prime is 421214207. The next prime is 421214237. The reversal of 421214222 is 222412124.

It is an interprime number because it is at equal distance from previous prime (421214207) and next prime (421214237).

It is a junction number, because it is equal to n+sod(n) for n = 421214194 and 421214203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736103 + ... + 736674.

It is an arithmetic number, because the mean of its divisors is an integer number (46392507).

Almost surely, 2^421214222 is an apocalyptic number.

421214222 is a deficient number, since it is larger than the sum of its proper divisors (321065890).

421214222 is a wasteful number, since it uses less digits than its factorization.

421214222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472803.

The product of its digits is 512, while the sum is 20.

The square root of 421214222 is about 20523.5041355028. The cubic root of 421214222 is about 749.6082232354.

Adding to 421214222 its reverse (222412124), we get a palindrome (643626346).

The spelling of 421214222 in words is "four hundred twenty-one million, two hundred fourteen thousand, two hundred twenty-two".