22110211009 has 2 divisors, whose sum is σ = 22110211010. Its totient is φ = 22110211008.

The previous prime is 22110211007. The next prime is 22110211037. The reversal of 22110211009 is 90011201122.

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., 20670387984 + 1439823025 = 143772^2 + 37945^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110211009 - 2¹ = 22110211007 is a prime.

It is a super-2 number, since 2×22110211009² (a number of 21 digits) contains 22 as substring.

Together with 22110211007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22110211007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055105504 + 11055105505.

It is an arithmetic number, because the mean of its divisors is an integer number (11055105505).

Almost surely, 2^22110211009 is an apocalyptic number.

It is an amenable number.

22110211009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110211009 is an equidigital number, since it uses as much as digits as its factorization.

22110211009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 22110211009 in words is "twenty-two billion, one hundred ten million, two hundred eleven thousand, nine".