11221148 has 18 divisors (see below), whose sum is σ = 20531784. Its totient is φ = 5365624.

The previous prime is 11221141. The next prime is 11221159. The reversal of 11221148 is 84112211.

11221148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221141) 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, 536 + ... + 4767.

Almost surely, 2^11221148 is an apocalyptic number.

It is an amenable number.

11221148 is a deficient number, since it is larger than the sum of its proper divisors (9310636).

11221148 is a wasteful number, since it uses less digits than its factorization.

11221148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353 (or 5328 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

The square root of 11221148 is about 3349.7982028773. The cubic root of 11221148 is about 223.8785215048.

Adding to 11221148 its reverse (84112211), we get a palindrome (95333359).

It can be divided in two parts, 112 and 21148, that multiplied together give a triangular number (2368576 = T₂₁₇₆).

The spelling of 11221148 in words is "eleven million, two hundred twenty-one thousand, one hundred forty-eight".