12101021002118 has 16 divisors (see below), whose sum is σ = 18172533156336. Its totient is φ = 6043510287360.

The previous prime is 12101021002117. The next prime is 12101021002157. The reversal of 12101021002118 is 81120012010121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101021002118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101021002117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123996830 + ... + 124094382.

It is an arithmetic number, because the mean of its divisors is an integer number (1135783322271).

Almost surely, 2^{12101021002118} is an apocalyptic number.

12101021002118 is a deficient number, since it is larger than the sum of its proper divisors (6071512154218).

12101021002118 is an equidigital number, since it uses as much as digits as its factorization.

12101021002118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168679.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 12101021002118 its reverse (81120012010121), we get a palindrome (93221033012239).

The spelling of 12101021002118 in words is "twelve trillion, one hundred one billion, twenty-one million, two thousand, one hundred eighteen".