11221803 has 6 divisors (see below), whose sum is σ = 16209284. Its totient is φ = 7481196.

The previous prime is 11221789. The next prime is 11221829. The reversal of 11221803 is 30812211.

It is not a de Polignac number, because 11221803 - 2⁶ = 11221739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623425 + ... + 623442.

Almost surely, 2^11221803 is an apocalyptic number.

11221803 is a deficient number, since it is larger than the sum of its proper divisors (4987481).

11221803 is a wasteful number, since it uses less digits than its factorization.

11221803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246873 (or 1246870 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11221803 is about 3349.8959685339. The cubic root of 11221803 is about 223.8828774934.

The spelling of 11221803 in words is "eleven million, two hundred twenty-one thousand, eight hundred three".