20011120222209 has 4 divisors (see below), whose sum is σ = 26681493629616. Its totient is φ = 13340746814804.

The previous prime is 20011120222193. The next prime is 20011120222211. The reversal of 20011120222209 is 90222202111002.

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 20011120222209 - 2⁴ = 20011120222193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011120222279) 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, 3335186703699 + ... + 3335186703704.

It is an arithmetic number, because the mean of its divisors is an integer number (6670373407404).

Almost surely, 2^{20011120222209} is an apocalyptic number.

It is an amenable number.

20011120222209 is a deficient number, since it is larger than the sum of its proper divisors (6670373407407).

20011120222209 is an equidigital number, since it uses as much as digits as its factorization.

20011120222209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670373407406.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 20011120222209 in words is "twenty trillion, eleven billion, one hundred twenty million, two hundred twenty-two thousand, two hundred nine".