11222945 has 4 divisors (see below), whose sum is σ = 13467540. Its totient is φ = 8978352.

The previous prime is 11222917. The next prime is 11223001. The reversal of 11222945 is 54922211.

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 1926544 + 9296401 = 1388^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222945 - 2¹² = 11218849 is a prime.

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, 1122290 + ... + 1122299.

It is an arithmetic number, because the mean of its divisors is an integer number (3366885).

Almost surely, 2^11222945 is an apocalyptic number.

It is an amenable number.

11222945 is a deficient number, since it is larger than the sum of its proper divisors (2244595).

11222945 is an equidigital number, since it uses as much as digits as its factorization.

11222945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244594.

The product of its digits is 1440, while the sum is 26.

The square root of 11222945 is about 3350.0664172521. The cubic root of 11222945 is about 223.8904718040.

It can be divided in two parts, 11222 and 945, that added together give a cube (12167 = 23³).

The spelling of 11222945 in words is "eleven million, two hundred twenty-two thousand, nine hundred forty-five".