2102120010001 has 8 divisors (see below), whose sum is σ = 2311278695424. Its totient is φ = 1895970802320.

The previous prime is 2102120009999. The next prime is 2102120010007. The reversal of 2102120010001 is 1000100212012.

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 2102120010001 - 2¹ = 2102120009999 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 2102120010001.

It is not an unprimeable number, because it can be changed into a prime (2102120010007) 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 7 ways as a sum of consecutive naturals, for example, 752367970 + ... + 752370763.

It is an arithmetic number, because the mean of its divisors is an integer number (288909836928).

Almost surely, 2^{2102120010001} is an apocalyptic number.

It is an amenable number.

2102120010001 is a deficient number, since it is larger than the sum of its proper divisors (209158685423).

2102120010001 is a wasteful number, since it uses less digits than its factorization.

2102120010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504738871.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2102120010001 its reverse (1000100212012), we get a palindrome (3102220222013).

The spelling of 2102120010001 in words is "two trillion, one hundred two billion, one hundred twenty million, ten thousand, one".