421323222 has 8 divisors (see below), whose sum is σ = 842646456. Its totient is φ = 140441072.

The previous prime is 421323209. The next prime is 421323229. The reversal of 421323222 is 222323124.

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

421323222 is an admirable number.

It is a super-2 number, since 2×421323222² = 355026514792922568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421323229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35110263 + ... + 35110274.

It is an arithmetic number, because the mean of its divisors is an integer number (105330807).

Almost surely, 2^421323222 is an apocalyptic number.

421323222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421323222 is a wasteful number, since it uses less digits than its factorization.

421323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70220542.

The product of its digits is 1152, while the sum is 21.

The square root of 421323222 is about 20526.1594556800. The cubic root of 421323222 is about 749.6728777866.

Adding to 421323222 its reverse (222323124), we get a palindrome (643646346).

It can be divided in two parts, 42132 and 3222, that added together give a palindrome (45354).

The spelling of 421323222 in words is "four hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-two".