2102210002001 has 16 divisors (see below), whose sum is σ = 2292614461440. Its totient is φ = 1922452674240.

The previous prime is 2102210001973. The next prime is 2102210002021. The reversal of 2102210002001 is 1002000122012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2102210002001 - 2³⁰ = 2101136260177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2102210002021) 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, 24834206 + ... + 24918711.

It is an arithmetic number, because the mean of its divisors is an integer number (143288403840).

Almost surely, 2^{2102210002001} is an apocalyptic number.

It is an amenable number.

2102210002001 is a deficient number, since it is larger than the sum of its proper divisors (190404459439).

2102210002001 is a wasteful number, since it uses less digits than its factorization.

2102210002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49753024.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2102210002001 its reverse (1002000122012), we get a palindrome (3104210124013).

The spelling of 2102210002001 in words is "two trillion, one hundred two billion, two hundred ten million, two thousand, one".