11020205252 has 72 divisors (see below), whose sum is σ = 23383825920. Its totient is φ = 4525960320.

The previous prime is 11020205227. The next prime is 11020205269. The reversal of 11020205252 is 25250202011.

It is a happy number.

11020205252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 617024 + ... + 634632.

It is an arithmetic number, because the mean of its divisors is an integer number (324775360).

Almost surely, 2^11020205252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11020205252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11691912960).

11020205252 is an abundant number, since it is smaller than the sum of its proper divisors (12363620668).

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

11020205252 is a wasteful number, since it uses less digits than its factorization.

11020205252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17761 (or 17752 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 11020205252 its reverse (25250202011), we get a palindrome (36270407263).

The spelling of 11020205252 in words is "eleven billion, twenty million, two hundred five thousand, two hundred fifty-two".