11220223109 has 2 divisors, whose sum is σ = 11220223110. Its totient is φ = 11220223108.

The previous prime is 11220223099. The next prime is 11220223153. The reversal of 11220223109 is 90132202211.

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., 10261082209 + 959140900 = 101297^2 + 30970^2 .

It is an emirp because it is prime and its reverse (90132202211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220223109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220223199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610111554 + 5610111555.

It is an arithmetic number, because the mean of its divisors is an integer number (5610111555).

Almost surely, 2^11220223109 is an apocalyptic number.

It is an amenable number.

11220223109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220223109 is an equidigital number, since it uses as much as digits as its factorization.

11220223109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 11220223109 in words is "eleven billion, two hundred twenty million, two hundred twenty-three thousand, one hundred nine".