22103309209 has 2 divisors, whose sum is σ = 22103309210. Its totient is φ = 22103309208.

The previous prime is 22103309171. The next prime is 22103309227. The reversal of 22103309209 is 90290330122.

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., 20826819225 + 1276489984 = 144315^2 + 35728^2 .

It is a cyclic number.

It is not a de Polignac number, because 22103309209 - 2¹⁷ = 22103178137 is a prime.

It is not a weakly prime, because it can be changed into another prime (22103307209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051654604 + 11051654605.

It is an arithmetic number, because the mean of its divisors is an integer number (11051654605).

Almost surely, 2^22103309209 is an apocalyptic number.

It is an amenable number.

22103309209 is a deficient number, since it is larger than the sum of its proper divisors (1).

22103309209 is an equidigital number, since it uses as much as digits as its factorization.

22103309209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 22103309209 in words is "twenty-two billion, one hundred three million, three hundred nine thousand, two hundred nine".