622222209 has 32 divisors (see below), whose sum is σ = 1058211840. Its totient is φ = 353964816.

The previous prime is 622222207. The next prime is 622222247. The reversal of 622222209 is 902222226.

It is not a de Polignac number, because 622222209 - 2¹ = 622222207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (622222207) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 35652 + ... + 50154.

It is an arithmetic number, because the mean of its divisors is an integer number (33069120).

Almost surely, 2^622222209 is an apocalyptic number.

It is an amenable number.

622222209 is a deficient number, since it is larger than the sum of its proper divisors (435989631).

622222209 is a wasteful number, since it uses less digits than its factorization.

622222209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14746 (or 14740 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 622222209 is about 24944.3823134589. The cubic root of 622222209 is about 853.7194372778.

The spelling of 622222209 in words is "six hundred twenty-two million, two hundred twenty-two thousand, two hundred nine".