220011221209 has 8 divisors (see below), whose sum is σ = 236949966792. Its totient is φ = 203074590720.

The previous prime is 220011221077. The next prime is 220011221219. The reversal of 220011221209 is 902122110022.

220011221209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 69141124809 + 150870096400 = 262947^2 + 388420^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220011221209 - 2¹⁹ = 220010696921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220011221209.

It is not an unprimeable number, because it can be changed into a prime (220011221219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309352 + ... + 731929.

It is an arithmetic number, because the mean of its divisors is an integer number (29618745849).

Almost surely, 2^220011221209 is an apocalyptic number.

It is an amenable number.

220011221209 is a deficient number, since it is larger than the sum of its proper divisors (16938745583).

220011221209 is a wasteful number, since it uses less digits than its factorization.

220011221209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057547.

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

The spelling of 220011221209 in words is "two hundred twenty billion, eleven million, two hundred twenty-one thousand, two hundred nine".