2101210110001 has 16 divisors (see below), whose sum is σ = 2150523675648. Its totient is φ = 2052521683200.

The previous prime is 2101210109987. The next prime is 2101210110023. The reversal of 2101210110001 is 1000110121012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101210110001 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 2101210110001.

It is not an unprimeable number, because it can be changed into a prime (2101210110031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4066696 + ... + 4554166.

It is an arithmetic number, because the mean of its divisors is an integer number (134407729728).

Almost surely, 2^{2101210110001} is an apocalyptic number.

It is an amenable number.

2101210110001 is a deficient number, since it is larger than the sum of its proper divisors (49313565647).

2101210110001 is a wasteful number, since it uses less digits than its factorization.

2101210110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488112.

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

Adding to 2101210110001 its reverse (1000110121012), we get a palindrome (3101320231013).

The spelling of 2101210110001 in words is "two trillion, one hundred one billion, two hundred ten million, one hundred ten thousand, one".