11220240305 has 16 divisors (see below), whose sum is σ = 14052890880. Its totient is φ = 8583968448.

The previous prime is 11220240293. The next prime is 11220240307. The reversal of 11220240305 is 50304202211.

It is a cyclic number.

It is not a de Polignac number, because 11220240305 - 2⁴ = 11220240289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220240307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685244 + ... + 701426.

It is an arithmetic number, because the mean of its divisors is an integer number (878305680).

Almost surely, 2^11220240305 is an apocalyptic number.

It is an amenable number.

11220240305 is a deficient number, since it is larger than the sum of its proper divisors (2832650575).

11220240305 is a wasteful number, since it uses less digits than its factorization.

11220240305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22240.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 11220240305 its reverse (50304202211), we get a palindrome (61524442516).

The spelling of 11220240305 in words is "eleven billion, two hundred twenty million, two hundred forty thousand, three hundred five".