12100020001001 has 8 divisors (see below), whose sum is σ = 12101964548640. Its totient is φ = 12098075629248.

The previous prime is 12100020000907. The next prime is 12100020001007. The reversal of 12100020001001 is 10010002000121.

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 12100020001001 - 2¹⁴ = 12100019984617 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 12100020001001.

It is not an unprimeable number, because it can be changed into a prime (12100020001007) 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, 208494950 + ... + 208552976.

It is an arithmetic number, because the mean of its divisors is an integer number (1512745568580).

Almost surely, 2^{12100020001001} is an apocalyptic number.

It is an amenable number.

12100020001001 is a deficient number, since it is larger than the sum of its proper divisors (1944547639).

12100020001001 is a wasteful number, since it uses less digits than its factorization.

12100020001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87943.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12100020001001 its reverse (10010002000121), we get a palindrome (22110022001122).

The spelling of 12100020001001 in words is "twelve trillion, one hundred billion, twenty million, one thousand, one".