11220221306 has 32 divisors (see below), whose sum is σ = 20652993792. Its totient is φ = 4462053120.

The previous prime is 11220221281. The next prime is 11220221321. The reversal of 11220221306 is 60312202211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315101 + ... + 348896.

It is an arithmetic number, because the mean of its divisors is an integer number (645406056).

Almost surely, 2^11220221306 is an apocalyptic number.

11220221306 is a deficient number, since it is larger than the sum of its proper divisors (9432772486).

11220221306 is a wasteful number, since it uses less digits than its factorization.

11220221306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664094.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11220221306 its reverse (60312202211), we get a palindrome (71532423517).

The spelling of 11220221306 in words is "eleven billion, two hundred twenty million, two hundred twenty-one thousand, three hundred six".