20022100000009 has 2 divisors, whose sum is σ = 20022100000010. Its totient is φ = 20022100000008.

The previous prime is 20022100000003. The next prime is 20022100000109. The reversal of 20022100000009 is 90000000122002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17139575160009 + 2882524840000 = 4139997^2 + 1697800^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022100000009 - 2⁹ = 20022099999497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20022099999938 and 20022100000001.

It is not a weakly prime, because it can be changed into another prime (20022100000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011050000004 + 10011050000005.

It is an arithmetic number, because the mean of its divisors is an integer number (10011050000005).

Almost surely, 2^{20022100000009} is an apocalyptic number.

It is an amenable number.

20022100000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022100000009 is an equidigital number, since it uses as much as digits as its factorization.

20022100000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The spelling of 20022100000009 in words is "twenty trillion, twenty-two billion, one hundred million, nine", and thus it is an aban number.