122101109 has 8 divisors (see below), whose sum is σ = 131912760. Its totient is φ = 112349376.

The previous prime is 122101099. The next prime is 122101117. The reversal of 122101109 is 901101221.

It can be written as a sum of positive squares in 4 ways, for example, as 3073009 + 119028100 = 1753^2 + 10910^2 .

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 122101109 - 2⁴ = 122101093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10694 + ... + 18935.

It is an arithmetic number, because the mean of its divisors is an integer number (16489095).

Almost surely, 2^122101109 is an apocalyptic number.

It is an amenable number.

122101109 is a deficient number, since it is larger than the sum of its proper divisors (9811651).

122101109 is a wasteful number, since it uses less digits than its factorization.

122101109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29959.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 122101109 is about 11049.9370586443. The cubic root of 122101109 is about 496.1045416241.

The spelling of 122101109 in words is "one hundred twenty-two million, one hundred one thousand, one hundred nine".