122219405 has 16 divisors (see below), whose sum is σ = 182853504. Its totient is φ = 76188480.

The previous prime is 122219371. The next prime is 122219407. The reversal of 122219405 is 504912221.

It is not a de Polignac number, because 122219405 - 2¹⁰ = 122218381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122219407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158342 + ... + 159111.

It is an arithmetic number, because the mean of its divisors is an integer number (11428344).

Almost surely, 2^122219405 is an apocalyptic number.

It is an amenable number.

122219405 is a deficient number, since it is larger than the sum of its proper divisors (60634099).

122219405 is a wasteful number, since it uses less digits than its factorization.

122219405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317476.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 122219405 is about 11055.2885534481. The cubic root of 122219405 is about 496.2647046255.

The spelling of 122219405 in words is "one hundred twenty-two million, two hundred nineteen thousand, four hundred five".