22209999989 has 2 divisors, whose sum is σ = 22209999990. Its totient is φ = 22209999988.

The previous prime is 22209999983. The next prime is 22210000009. The reversal of 22209999989 is 98999990222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20526292900 + 1683707089 = 143270^2 + 41033^2 .

It is a cyclic number.

It is not a de Polignac number, because 22209999989 - 2²⁴ = 22193222773 is a prime.

It is a super-2 number, since 2×22209999989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22209999983) 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, 11104999994 + 11104999995.

It is an arithmetic number, because the mean of its divisors is an integer number (11104999995).

Almost surely, 2^22209999989 is an apocalyptic number.

It is an amenable number.

22209999989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22209999989 is an equidigital number, since it uses as much as digits as its factorization.

22209999989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34012224, while the sum is 68.

The spelling of 22209999989 in words is "twenty-two billion, two hundred nine million, nine hundred ninety-nine thousand, nine hundred eighty-nine".