121100122002009 has 32 divisors (see below), whose sum is σ = 163078625767680. Its totient is φ = 79929154787328.

The previous prime is 121100122001869. The next prime is 121100122002037. The reversal of 121100122002009 is 900200221001121.

It is not a de Polignac number, because 121100122002009 - 2⁸ = 121100122001753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121100122004009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1719575172 + ... + 1719645594.

It is an arithmetic number, because the mean of its divisors is an integer number (5096207055240).

Almost surely, 2^{121100122002009} is an apocalyptic number.

It is an amenable number.

121100122002009 is a deficient number, since it is larger than the sum of its proper divisors (41978503765671).

121100122002009 is a wasteful number, since it uses less digits than its factorization.

121100122002009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76161.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 121100122002009 in words is "one hundred twenty-one trillion, one hundred billion, one hundred twenty-two million, two thousand, nine".