121121332009 has 8 divisors (see below), whose sum is σ = 125165221632. Its totient is φ = 117133220400.

The previous prime is 121121331983. The next prime is 121121332049. The reversal of 121121332009 is 900233121121.

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 121121332009 - 2¹¹ = 121121329961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121332049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13940089 + ... + 13948774.

It is an arithmetic number, because the mean of its divisors is an integer number (15645652704).

Almost surely, 2^121121332009 is an apocalyptic number.

It is an amenable number.

121121332009 is a deficient number, since it is larger than the sum of its proper divisors (4043889623).

121121332009 is a wasteful number, since it uses less digits than its factorization.

121121332009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27889007.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 121121332009 in words is "one hundred twenty-one billion, one hundred twenty-one million, three hundred thirty-two thousand, nine".