22000101209 has 2 divisors, whose sum is σ = 22000101210.
Its totient is φ = 22000101208.
The previous prime is 22000101187. The next prime is 22000101241. The reversal of 22000101209 is 90210100022.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16530759184 + 5469342025 = 128572^2 + 73955^2
It is a cyclic number.
It is not a de Polignac number, because 22000101209 - 224 = 21983323993 is a prime.
It is not a weakly prime, because it can be changed into another prime (22000101269) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000050604 + 11000050605.
It is an arithmetic number, because the mean of its divisors is an integer number (11000050605).
Almost surely, 222000101209 is an apocalyptic number.
It is an amenable number.
22000101209 is a deficient number, since it is larger than the sum of its proper divisors (1).
22000101209 is an equidigital number, since it uses as much as digits as its factorization.
22000101209 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 17.
The spelling of 22000101209 in words is "twenty-two billion, one hundred one thousand, two hundred nine".