622567221 has 8 divisors (see below), whose sum is σ = 830908320. Its totient is φ = 414635472.

The previous prime is 622567199. The next prime is 622567259. The reversal of 622567221 is 122765226.

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

It is not a de Polignac number, because 622567221 - 2²⁷ = 488349493 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622567921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98770 + ... + 104883.

It is an arithmetic number, because the mean of its divisors is an integer number (103863540).

Almost surely, 2^622567221 is an apocalyptic number.

It is an amenable number.

622567221 is a deficient number, since it is larger than the sum of its proper divisors (208341099).

622567221 is a wasteful number, since it uses less digits than its factorization.

622567221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204675.

The product of its digits is 20160, while the sum is 33.

The square root of 622567221 is about 24951.2969803175. The cubic root of 622567221 is about 853.8771992601.

The spelling of 622567221 in words is "six hundred twenty-two million, five hundred sixty-seven thousand, two hundred twenty-one".