11021224 has 8 divisors (see below), whose sum is σ = 20664810. Its totient is φ = 5510608.

The previous prime is 11021183. The next prime is 11021249. The reversal of 11021224 is 42212011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11009124 + 12100 = 3318^2 + 110^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688819 + ... + 688834.

Almost surely, 2^11021224 is an apocalyptic number.

It is an amenable number.

11021224 is a deficient number, since it is larger than the sum of its proper divisors (9643586).

11021224 is a wasteful number, since it uses less digits than its factorization.

11021224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377659 (or 1377655 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 11021224 is about 3319.8228868420. The cubic root of 11021224 is about 222.5409527783.

Adding to 11021224 its reverse (42212011), we get a palindrome (53233235).

The spelling of 11021224 in words is "eleven million, twenty-one thousand, two hundred twenty-four".