11220265 has 24 divisors (see below), whose sum is σ = 16058952. Its totient is φ = 7499520.

The previous prime is 11220247. The next prime is 11220269. The reversal of 11220265 is 56202211.

11220265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 670761 + 10549504 = 819^2 + 3248^2 .

It is not a de Polignac number, because 11220265 - 2⁷ = 11220137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9487 + ... + 10603.

It is an arithmetic number, because the mean of its divisors is an integer number (669123).

Almost surely, 2^11220265 is an apocalyptic number.

It is an amenable number.

11220265 is a deficient number, since it is larger than the sum of its proper divisors (4838687).

11220265 is a wasteful number, since it uses less digits than its factorization.

11220265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 11220265 is about 3349.6664013003. Note that the first 3 decimals coincide. The cubic root of 11220265 is about 223.8726489648.

Adding to 11220265 its reverse (56202211), we get a palindrome (67422476).

The spelling of 11220265 in words is "eleven million, two hundred twenty thousand, two hundred sixty-five".