122405122 has 16 divisors (see below), whose sum is σ = 210157632. Its totient is φ = 52379280.

The previous prime is 122405093. The next prime is 122405137. The reversal of 122405122 is 221504221.

It is a self number, because there is not a number n which added to its sum of digits gives 122405122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3348 + ... + 16000.

It is an arithmetic number, because the mean of its divisors is an integer number (13134852).

Almost surely, 2^122405122 is an apocalyptic number.

122405122 is a deficient number, since it is larger than the sum of its proper divisors (87752510).

122405122 is a wasteful number, since it uses less digits than its factorization.

122405122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13353.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 122405122 is about 11063.6848292059. The cubic root of 122405122 is about 496.5159417317.

Adding to 122405122 its reverse (221504221), we get a palindrome (343909343).

Subtracting 122405122 from its reverse (221504221), we obtain a palindrome (99099099).

The spelling of 122405122 in words is "one hundred twenty-two million, four hundred five thousand, one hundred twenty-two".