11220003221 has 16 divisors (see below), whose sum is σ = 13383788544. Its totient is φ = 9196663344.

The previous prime is 11220003211. The next prime is 11220003239. The reversal of 11220003221 is 12230002211.

It is a happy number.

11220003221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11220003221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220003196 and 11220003205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220003211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 934760 + ... + 946686.

It is an arithmetic number, because the mean of its divisors is an integer number (836486784).

Almost surely, 2^11220003221 is an apocalyptic number.

It is an amenable number.

11220003221 is a deficient number, since it is larger than the sum of its proper divisors (2163785323).

11220003221 is a wasteful number, since it uses less digits than its factorization.

11220003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17800.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11220003221 its reverse (12230002211), we get a palindrome (23450005432).

The spelling of 11220003221 in words is "eleven billion, two hundred twenty million, three thousand, two hundred twenty-one".