2122002111109 has 4 divisors (see below), whose sum is σ = 2122013135116. Its totient is φ = 2121991087104.

The previous prime is 2122002111011. The next prime is 2122002111169. The reversal of 2122002111109 is 9011112002212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 640616148225 + 1481385962884 = 800385^2 + 1217122^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122002111109 - 2¹³ = 2122002102917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122002111109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122002111169) 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, 5218044 + ... + 5609989.

It is an arithmetic number, because the mean of its divisors is an integer number (530503283779).

Almost surely, 2^{2122002111109} is an apocalyptic number.

It is an amenable number.

2122002111109 is a deficient number, since it is larger than the sum of its proper divisors (11024007).

2122002111109 is a wasteful number, since it uses less digits than its factorization.

2122002111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11024006.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 2122002111109 in words is "two trillion, one hundred twenty-two billion, two million, one hundred eleven thousand, one hundred nine".