12100021110001 has 4 divisors (see below), whose sum is σ = 13200023029104. Its totient is φ = 11000019190900.

The previous prime is 12100021109963. The next prime is 12100021110007. The reversal of 12100021110001 is 10001112000121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12100021110001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12100021110001.

It is not an unprimeable number, because it can be changed into a prime (12100021110007) 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, 550000959535 + ... + 550000959556.

It is an arithmetic number, because the mean of its divisors is an integer number (3300005757276).

Almost surely, 2^{12100021110001} is an apocalyptic number.

12100021110001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12100021110001 is a deficient number, since it is larger than the sum of its proper divisors (1100001919103).

12100021110001 is a wasteful number, since it uses less digits than its factorization.

12100021110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100001919102.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12100021110001 its reverse (10001112000121), we get a palindrome (22101133110122).

The spelling of 12100021110001 in words is "twelve trillion, one hundred billion, twenty-one million, one hundred ten thousand, one".