34223221 has 4 divisors (see below), whose sum is σ = 34243744. Its totient is φ = 34202700.

The previous prime is 34223173. The next prime is 34223239. The reversal of 34223221 is 12232243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34223221 - 2²¹ = 32126069 is a prime.

It is a super-2 number, since 2×34223221² = 2342457711229682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34223251) by changing a digit.

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, 7515 + ... + 11176.

It is an arithmetic number, because the mean of its divisors is an integer number (8560936).

Almost surely, 2^34223221 is an apocalyptic number.

It is an amenable number.

34223221 is a deficient number, since it is larger than the sum of its proper divisors (20523).

34223221 is a wasteful number, since it uses less digits than its factorization.

34223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20522.

The product of its digits is 576, while the sum is 19.

The square root of 34223221 is about 5850.0616236071. The cubic root of 34223221 is about 324.6686042092.

Adding to 34223221 its reverse (12232243), we get a palindrome (46455464).

It can be divided in two parts, 3 and 4223221, that added together give a palindrome (4223224).

The spelling of 34223221 in words is "thirty-four million, two hundred twenty-three thousand, two hundred twenty-one".