220102120009 has 4 divisors (see below), whose sum is σ = 220143583620. Its totient is φ = 220060656400.

The previous prime is 220102120003. The next prime is 220102120099. The reversal of 220102120009 is 900021201022.

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 53082777609 + 167019342400 = 230397^2 + 408680^2 .

It is a cyclic number.

It is not a de Polignac number, because 220102120009 - 2³ = 220102120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220102120001) 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, 20723842 + ... + 20734459.

It is an arithmetic number, because the mean of its divisors is an integer number (55035895905).

Almost surely, 2^220102120009 is an apocalyptic number.

It is an amenable number.

220102120009 is a deficient number, since it is larger than the sum of its proper divisors (41463611).

220102120009 is an equidigital number, since it uses as much as digits as its factorization.

220102120009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41463610.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 220102120009 in words is "two hundred twenty billion, one hundred two million, one hundred twenty thousand, nine".