11033020221 has 32 divisors (see below), whose sum is σ = 15129354240. Its totient is φ = 7149643200.

The previous prime is 11033020189. The next prime is 11033020223. The reversal of 11033020221 is 12202033011.

It is not a de Polignac number, because 11033020221 - 2⁵ = 11033020189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11033020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033020223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5176326 + ... + 5178456.

It is an arithmetic number, because the mean of its divisors is an integer number (472792320).

Almost surely, 2^11033020221 is an apocalyptic number.

It is an amenable number.

11033020221 is a deficient number, since it is larger than the sum of its proper divisors (4096334019).

11033020221 is a wasteful number, since it uses less digits than its factorization.

11033020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11033020221 its reverse (12202033011), we get a palindrome (23235053232).

The spelling of 11033020221 in words is "eleven billion, thirty-three million, twenty thousand, two hundred twenty-one".