1222222111009 has 8 divisors (see below), whose sum is σ = 1275630757632. Its totient is φ = 1168835844000.

The previous prime is 1222222111007. The next prime is 1222222111021. The reversal of 1222222111009 is 9001112222221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222222111009 - 2¹ = 1222222111007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222222111001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5483244 + ... + 5701789.

It is an arithmetic number, because the mean of its divisors is an integer number (159453844704).

Almost surely, 2^{1222222111009} is an apocalyptic number.

It is an amenable number.

1222222111009 is a deficient number, since it is larger than the sum of its proper divisors (53408646623).

1222222111009 is a wasteful number, since it uses less digits than its factorization.

1222222111009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11189807.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 1222222111009 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred eleven thousand, nine".