12122102221109 has 8 divisors (see below), whose sum is σ = 12136606012440. Its totient is φ = 12107607091200.

The previous prime is 12122102221093. The next prime is 12122102221123. The reversal of 12122102221109 is 90112220122121.

It can be written as a sum of positive squares in 4 ways, for example, as 5181496164100 + 6940606057009 = 2276290^2 + 2634503^2 .

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 12122102221109 - 2⁴ = 12122102221093 is a prime.

It is a super-2 number, since 2×12122102221109² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122102221169) 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, 637589 + ... + 4964949.

It is an arithmetic number, because the mean of its divisors is an integer number (1517075751555).

Almost surely, 2^{12122102221109} is an apocalyptic number.

It is an amenable number.

12122102221109 is a deficient number, since it is larger than the sum of its proper divisors (14503791331).

12122102221109 is a wasteful number, since it uses less digits than its factorization.

12122102221109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330711.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 12122102221109 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, two hundred twenty-one thousand, one hundred nine".