11220475 has 24 divisors (see below), whose sum is σ = 16089248. Its totient is φ = 7603200.

The previous prime is 11220467. The next prime is 11220487. The reversal of 11220475 is 57402211.

It is a happy number.

It is not a de Polignac number, because 11220475 - 2³ = 11220467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16645 + ... + 17305.

Almost surely, 2^11220475 is an apocalyptic number.

11220475 is a deficient number, since it is larger than the sum of its proper divisors (4868773).

11220475 is an equidigital number, since it uses as much as digits as its factorization.

11220475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 11220475 is about 3349.6977475587. The cubic root of 11220475 is about 223.8740456331.

Adding to 11220475 its reverse (57402211), we get a palindrome (68622686).

The spelling of 11220475 in words is "eleven million, two hundred twenty thousand, four hundred seventy-five".