121101032209 has 4 divisors (see below), whose sum is σ = 121121124660. Its totient is φ = 121080939760.

The previous prime is 121101032207. The next prime is 121101032243. The reversal of 121101032209 is 902230101121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84506490000 + 36594542209 = 290700^2 + 191297^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101032209 - 2¹ = 121101032207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121101032209.

It is not an unprimeable number, because it can be changed into a prime (121101032207) 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 3 ways as a sum of consecutive naturals, for example, 10037182 + ... + 10049239.

It is an arithmetic number, because the mean of its divisors is an integer number (30280281165).

Almost surely, 2^121101032209 is an apocalyptic number.

It is an amenable number.

121101032209 is a deficient number, since it is larger than the sum of its proper divisors (20092451).

121101032209 is an equidigital number, since it uses as much as digits as its factorization.

121101032209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20092450.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 121101032209 in words is "one hundred twenty-one billion, one hundred one million, thirty-two thousand, two hundred nine".