20011222110109 has 4 divisors (see below), whose sum is σ = 20012489380800. Its totient is φ = 20009954839420.

The previous prime is 20011222110107. The next prime is 20011222110119. The reversal of 20011222110109 is 90101122211002.

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 20011222110109 - 2¹ = 20011222110107 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 20011222110109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011222110107) 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 3 ways as a sum of consecutive naturals, for example, 633611659 + ... + 633643240.

It is an arithmetic number, because the mean of its divisors is an integer number (5003122345200).

Almost surely, 2^{20011222110109} is an apocalyptic number.

It is an amenable number.

20011222110109 is a deficient number, since it is larger than the sum of its proper divisors (1267270691).

20011222110109 is a wasteful number, since it uses less digits than its factorization.

20011222110109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267270690.

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

The spelling of 20011222110109 in words is "twenty trillion, eleven billion, two hundred twenty-two million, one hundred ten thousand, one hundred nine".