1121122221009 has 16 divisors (see below), whose sum is σ = 1740610242432. Its totient is φ = 628553697408.

The previous prime is 1121122220989. The next prime is 1121122221061. The reversal of 1121122221009 is 9001222211211.

It is not a de Polignac number, because 1121122221009 - 2¹¹ = 1121122218961 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121122221009.

It is not an unprimeable number, because it can be changed into a prime (1121122221209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503647684 + ... + 503649909.

It is an arithmetic number, because the mean of its divisors is an integer number (108788140152).

Almost surely, 2^{1121122221009} is an apocalyptic number.

It is an amenable number.

1121122221009 is a deficient number, since it is larger than the sum of its proper divisors (619488021423).

1121122221009 is a wasteful number, since it uses less digits than its factorization.

1121122221009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007297656.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 1121122221009 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, nine".