122312205 has 24 divisors (see below), whose sum is σ = 218849280. Its totient is φ = 63128160.

The previous prime is 122312173. The next prime is 122312207. The reversal of 122312205 is 502213221.

It is not a de Polignac number, because 122312205 - 2⁵ = 122312173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312207) 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 23 ways as a sum of consecutive naturals, for example, 42445 + ... + 45234.

It is an arithmetic number, because the mean of its divisors is an integer number (9118720).

Almost surely, 2^122312205 is an apocalyptic number.

122312205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122312205 is a deficient number, since it is larger than the sum of its proper divisors (96537075).

122312205 is a wasteful number, since it uses less digits than its factorization.

122312205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87721 (or 87718 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 122312205 is about 11059.4848433370. The cubic root of 122312205 is about 496.3902758296.

Adding to 122312205 its reverse (502213221), we get a palindrome (624525426).

The spelling of 122312205 in words is "one hundred twenty-two million, three hundred twelve thousand, two hundred five".