22212302209 has 2 divisors, whose sum is σ = 22212302210. Its totient is φ = 22212302208.

The previous prime is 22212302179. The next prime is 22212302213. The reversal of 22212302209 is 90220321222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11471052609 + 10741249600 = 107103^2 + 103640^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212302209 - 2²⁵ = 22178747777 is a prime.

It is not a weakly prime, because it can be changed into another prime (22212302219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106151104 + 11106151105.

It is an arithmetic number, because the mean of its divisors is an integer number (11106151105).

Almost surely, 2^22212302209 is an apocalyptic number.

It is an amenable number.

22212302209 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212302209 is an equidigital number, since it uses as much as digits as its factorization.

22212302209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 22212302209 in words is "twenty-two billion, two hundred twelve million, three hundred two thousand, two hundred nine".