11021220324 has 27 divisors (see below), whose sum is σ = 27860788137. Its totient is φ = 3673530144.

The previous prime is 11021220319. The next prime is 11021220361. The reversal of 11021220324 is 42302212011.

It is a happy number.

The square root of 11021220324 is 104982.

It is a perfect power (a square), and thus also a powerful number.

11021220324 is a `hidden beast` number, since 110 + 212 + 20 + 324 = 666.

11021220324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31472100 + 10989748224 = 5610^2 + 104832^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11021220297 and 11021220306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 621144 + ... + 638640.

Almost surely, 2^11021220324 is an apocalyptic number.

11021220324 is the 104982-nd square number.

It is an amenable number.

11021220324 is an abundant number, since it is smaller than the sum of its proper divisors (16839567813).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021220324 is an frugal number, since it uses more digits than its factorization.

11021220324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35004 (or 17502 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11021220324 its reverse (42302212011), we get a palindrome (53323432335).

The spelling of 11021220324 in words is "eleven billion, twenty-one million, two hundred twenty thousand, three hundred twenty-four".