1222112200009 has 2 divisors, whose sum is σ = 1222112200010. Its totient is φ = 1222112200008.

The previous prime is 1222112200007. The next prime is 1222112200019. The reversal of 1222112200009 is 9000022112221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769725475600 + 452386724409 = 877340^2 + 672597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222112200009 - 2¹ = 1222112200007 is a prime.

Together with 1222112200007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1222112200007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611056100004 + 611056100005.

It is an arithmetic number, because the mean of its divisors is an integer number (611056100005).

Almost surely, 2^{1222112200009} is an apocalyptic number.

It is an amenable number.

1222112200009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222112200009 is an equidigital number, since it uses as much as digits as its factorization.

1222112200009 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1222112200009 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred thousand, nine".