2122201221109 has 4 divisors (see below), whose sum is σ = 2233896022240. Its totient is φ = 2010506419980.

The previous prime is 2122201221089. The next prime is 2122201221187. The reversal of 2122201221109 is 9011221022212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2122201221109 - 2¹⁹ = 2122200696821 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 (2122201221509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55847400537 + ... + 55847400574.

It is an arithmetic number, because the mean of its divisors is an integer number (558474005560).

Almost surely, 2^{2122201221109} is an apocalyptic number.

It is an amenable number.

2122201221109 is a deficient number, since it is larger than the sum of its proper divisors (111694801131).

2122201221109 is a wasteful number, since it uses less digits than its factorization.

2122201221109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111694801130.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 2122201221109 in words is "two trillion, one hundred twenty-two billion, two hundred one million, two hundred twenty-one thousand, one hundred nine".