220221112009 has 4 divisors (see below), whose sum is σ = 227325018880. Its totient is φ = 213117205140.

The previous prime is 220221111989. The next prime is 220221112061. The reversal of 220221112009 is 900211122022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220221112009 - 2¹¹ = 220221109961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220221113009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3551953389 + ... + 3551953450.

It is an arithmetic number, because the mean of its divisors is an integer number (56831254720).

Almost surely, 2^220221112009 is an apocalyptic number.

It is an amenable number.

220221112009 is a deficient number, since it is larger than the sum of its proper divisors (7103906871).

220221112009 is an equidigital number, since it uses as much as digits as its factorization.

220221112009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7103906870.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 220221112009 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred twelve thousand, nine".