102121120000109 has 16 divisors (see below), whose sum is σ = 116898919315200. Its totient is φ = 87390693621504.

The previous prime is 102121120000103. The next prime is 102121120000117. The reversal of 102121120000109 is 901000021121201.

It is not a de Polignac number, because 102121120000109 - 2⁸ = 102121119999853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121120000103) 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, 7154357 + ... + 15982085.

It is an arithmetic number, because the mean of its divisors is an integer number (7306182457200).

Almost surely, 2^{102121120000109} is an apocalyptic number.

It is an amenable number.

102121120000109 is a deficient number, since it is larger than the sum of its proper divisors (14777799315091).

102121120000109 is an equidigital number, since it uses as much as digits as its factorization.

102121120000109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8830412.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 102121120000109 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty million, one hundred nine", and thus it is an aban number.