12101210001101 has 4 divisors (see below), whose sum is σ = 13032072308892. Its totient is φ = 11170347693312.

The previous prime is 12101210001059. The next prime is 12101210001119. The reversal of 12101210001101 is 10110001210121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2597338363876 + 9503871637225 = 1611626^2 + 3082835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101210001101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101210003101) 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 3 ways as a sum of consecutive naturals, for example, 465431153876 + ... + 465431153901.

It is an arithmetic number, because the mean of its divisors is an integer number (3258018077223).

Almost surely, 2^{12101210001101} is an apocalyptic number.

It is an amenable number.

12101210001101 is a deficient number, since it is larger than the sum of its proper divisors (930862307791).

12101210001101 is an equidigital number, since it uses as much as digits as its factorization.

12101210001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930862307790.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12101210001101 its reverse (10110001210121), we get a palindrome (22211211211222).

The spelling of 12101210001101 in words is "twelve trillion, one hundred one billion, two hundred ten million, one thousand, one hundred one".