12101021002105 has 8 divisors (see below), whose sum is σ = 16595685945792. Its totient is φ = 8297842972848.

The previous prime is 12101021002043. The next prime is 12101021002117. The reversal of 12101021002105 is 50120012010121.

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 12101021002105 - 2¹⁹ = 12101020477817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172871728567 + ... + 172871728636.

It is an arithmetic number, because the mean of its divisors is an integer number (2074460743224).

Almost surely, 2^{12101021002105} is an apocalyptic number.

It is an amenable number.

12101021002105 is a deficient number, since it is larger than the sum of its proper divisors (4494664943687).

12101021002105 is an equidigital number, since it uses as much as digits as its factorization.

12101021002105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345743457215.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 12101021002105 its reverse (50120012010121), we get a palindrome (62221033012226).

The spelling of 12101021002105 in words is "twelve trillion, one hundred one billion, twenty-one million, two thousand, one hundred five".