122120210109 has 8 divisors (see below), whose sum is σ = 163825885792. Its totient is φ = 80914003920.

The previous prime is 122120210059. The next prime is 122120210129. The reversal of 122120210109 is 901012021221.

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

It is not a de Polignac number, because 122120210109 - 2⁸ = 122120209853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120210129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124866802 + ... + 124867779.

It is an arithmetic number, because the mean of its divisors is an integer number (20478235724).

Almost surely, 2^122120210109 is an apocalyptic number.

It is an amenable number.

122120210109 is a deficient number, since it is larger than the sum of its proper divisors (41705675683).

122120210109 is a wasteful number, since it uses less digits than its factorization.

122120210109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249734747.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 122120210109 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred ten thousand, one hundred nine".