220220121000109 has 4 divisors (see below), whose sum is σ = 221622796930204. Its totient is φ = 218817445070016.

The previous prime is 220220120999993. The next prime is 220220121000127. The reversal of 220220121000109 is 901000121022022.

220220121000109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35927196844900 + 184292924155209 = 5993930^2 + 13575453^2 .

It is a cyclic number.

It is not a de Polignac number, because 220220121000109 - 2¹⁷ = 220220120869037 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 220220121000109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220121000149) 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, 701337964812 + ... + 701337965125.

It is an arithmetic number, because the mean of its divisors is an integer number (55405699232551).

Almost surely, 2^{220220121000109} is an apocalyptic number.

It is an amenable number.

220220121000109 is a deficient number, since it is larger than the sum of its proper divisors (1402675930095).

220220121000109 is a wasteful number, since it uses less digits than its factorization.

220220121000109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402675930094.

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

The spelling of 220220121000109 in words is "two hundred twenty trillion, two hundred twenty billion, one hundred twenty-one million, one hundred nine", and thus it is an aban number.