20012211102209 has 16 divisors (see below), whose sum is σ = 20139667614528. Its totient is φ = 19885228114752.

The previous prime is 20012211102167. The next prime is 20012211102227. The reversal of 20012211102209 is 90220111221002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012211102209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012211104209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186580454 + ... + 186687680.

It is an arithmetic number, because the mean of its divisors is an integer number (1258729225908).

Almost surely, 2^{20012211102209} is an apocalyptic number.

It is an amenable number.

20012211102209 is a deficient number, since it is larger than the sum of its proper divisors (127456512319).

20012211102209 is a wasteful number, since it uses less digits than its factorization.

20012211102209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109424.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20012211102209 in words is "twenty trillion, twelve billion, two hundred eleven million, one hundred two thousand, two hundred nine".