11021144 has 8 divisors (see below), whose sum is σ = 20664660. Its totient is φ = 5510568.

The previous prime is 11021123. The next prime is 11021147. The reversal of 11021144 is 44112011.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688814 + ... + 688829.

Almost surely, 2^11021144 is an apocalyptic number.

It is an amenable number.

11021144 is a deficient number, since it is larger than the sum of its proper divisors (9643516).

11021144 is a wasteful number, since it uses less digits than its factorization.

11021144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377649 (or 1377645 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 11021144 is about 3319.8108379846. The cubic root of 11021144 is about 222.5404143227.

Adding to 11021144 its reverse (44112011), we get a palindrome (55133155).

The spelling of 11021144 in words is "eleven million, twenty-one thousand, one hundred forty-four".