220111121000009 has 2 divisors, whose sum is σ = 220111121000010. Its totient is φ = 220111121000008.

The previous prime is 220111120999997. The next prime is 220111121000093. The reversal of 220111121000009 is 900000121111022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205714620990025 + 14396500009984 = 14342755^2 + 3794272^2 .

It is a cyclic number.

It is not a de Polignac number, because 220111121000009 - 2⁸ = 220111120999753 is a prime.

It is not a weakly prime, because it can be changed into another prime (220111121000209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055560500004 + 110055560500005.

It is an arithmetic number, because the mean of its divisors is an integer number (110055560500005).

Almost surely, 2^{220111121000009} is an apocalyptic number.

It is an amenable number.

220111121000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

220111121000009 is an equidigital number, since it uses as much as digits as its factorization.

220111121000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 220111121000009 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty-one million, nine", and thus it is an aban number.