11222765 has 4 divisors (see below), whose sum is σ = 13467324. Its totient is φ = 8978208.

The previous prime is 11222759. The next prime is 11222789. The reversal of 11222765 is 56722211.

11222765 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1999396 + 9223369 = 1414^2 + 3037^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222765 - 2¹⁶ = 11157229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122272 + ... + 1122281.

It is an arithmetic number, because the mean of its divisors is an integer number (3366831).

Almost surely, 2^11222765 is an apocalyptic number.

It is an amenable number.

11222765 is a deficient number, since it is larger than the sum of its proper divisors (2244559).

11222765 is an equidigital number, since it uses as much as digits as its factorization.

11222765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244558.

The product of its digits is 1680, while the sum is 26.

The square root of 11222765 is about 3350.0395520053. The cubic root of 11222765 is about 223.8892748365.

Adding to 11222765 its reverse (56722211), we get a palindrome (67944976).

The spelling of 11222765 in words is "eleven million, two hundred twenty-two thousand, seven hundred sixty-five".