1121000220109 has 24 divisors (see below), whose sum is σ = 1408317694784. Its totient is φ = 873432806400.

The previous prime is 1121000220079. The next prime is 1121000220133. The reversal of 1121000220109 is 9010220001211.

It is a happy number.

It is not a de Polignac number, because 1121000220109 - 2⁹ = 1121000219597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121000220169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11335294 + ... + 11433760.

Almost surely, 2^{1121000220109} is an apocalyptic number.

It is an amenable number.

1121000220109 is a deficient number, since it is larger than the sum of its proper divisors (287317474675).

1121000220109 is a wasteful number, since it uses less digits than its factorization.

1121000220109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111937 (or 111926 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 1121000220109 in words is "one trillion, one hundred twenty-one billion, two hundred twenty thousand, one hundred nine".