20022100101209 has 2 divisors, whose sum is σ = 20022100101210. Its totient is φ = 20022100101208.

The previous prime is 20022100101191. The next prime is 20022100101221. The reversal of 20022100101209 is 90210100122002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14301799459984 + 5720300641225 = 3781772^2 + 2391715^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022100101209 - 2⁸ = 20022100100953 is a prime.

It is not a weakly prime, because it can be changed into another prime (20022100101299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011050050604 + 10011050050605.

It is an arithmetic number, because the mean of its divisors is an integer number (10011050050605).

Almost surely, 2^{20022100101209} is an apocalyptic number.

It is an amenable number.

20022100101209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022100101209 is an equidigital number, since it uses as much as digits as its factorization.

20022100101209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 20022100101209 in words is "twenty trillion, twenty-two billion, one hundred million, one hundred one thousand, two hundred nine".