11222265 has 16 divisors (see below), whose sum is σ = 18000000. Its totient is φ = 5970432.

The previous prime is 11222257. The next prime is 11222287. The reversal of 11222265 is 56222211.

It is a happy number.

It is not a de Polignac number, because 11222265 - 2³ = 11222257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8361 + ... + 9609.

It is an arithmetic number, because the mean of its divisors is an integer number (1125000).

Almost surely, 2^11222265 is an apocalyptic number.

11222265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11222265 is a deficient number, since it is larger than the sum of its proper divisors (6777735).

11222265 is a wasteful number, since it uses less digits than its factorization.

11222265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856.

The product of its digits is 480, while the sum is 21.

The square root of 11222265 is about 3349.9649251895. The cubic root of 11222265 is about 223.8859498597.

Adding to 11222265 its reverse (56222211), we get a palindrome (67444476).

It can be divided in two parts, 1 and 1222265, that added together give a triangular number (1222266 = T₁₅₆₃).

The spelling of 11222265 in words is "eleven million, two hundred twenty-two thousand, two hundred sixty-five".