1222120000009 has 2 divisors, whose sum is σ = 1222120000010. Its totient is φ = 1222120000008.

The previous prime is 1222119999983. The next prime is 1222120000147. The reversal of 1222120000009 is 9000000212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 820569657609 + 401550342400 = 905853^2 + 633680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222120000009 - 2¹¹ = 1222119997961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222120004009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611060000004 + 611060000005.

It is an arithmetic number, because the mean of its divisors is an integer number (611060000005).

Almost surely, 2^{1222120000009} is an apocalyptic number.

It is an amenable number.

1222120000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222120000009 is an equidigital number, since it uses as much as digits as its factorization.

1222120000009 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 1222120000009 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, nine", and thus it is an aban number.