122222005 has 8 divisors (see below), whose sum is σ = 147722400. Its totient is φ = 97073616.

The previous prime is 122221999. The next prime is 122222017. The reversal of 122222005 is 500222221.

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

It is a cyclic number.

It is not a de Polignac number, because 122222005 - 2³ = 122221997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122222005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87235 + ... + 88624.

It is an arithmetic number, because the mean of its divisors is an integer number (18465300).

Almost surely, 2^122222005 is an apocalyptic number.

It is an amenable number.

122222005 is a deficient number, since it is larger than the sum of its proper divisors (25500395).

122222005 is a wasteful number, since it uses less digits than its factorization.

122222005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176003.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 122222005 is about 11055.4061436023. The cubic root of 122222005 is about 496.2682236496.

Adding to 122222005 its reverse (500222221), we get a palindrome (622444226).

The spelling of 122222005 in words is "one hundred twenty-two million, two hundred twenty-two thousand, five".