2100210020201 has 4 divisors (see below), whose sum is σ = 2100223354752. Its totient is φ = 2100196685652.

The previous prime is 2100210020131. The next prime is 2100210020239. The reversal of 2100210020201 is 1020200120012.

It is a happy number.

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 not a de Polignac number, because 2100210020201 - 2¹⁰ = 2100210019177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100210020501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6428165 + ... + 6746978.

It is an arithmetic number, because the mean of its divisors is an integer number (525055838688).

Almost surely, 2^{2100210020201} is an apocalyptic number.

It is an amenable number.

2100210020201 is a deficient number, since it is larger than the sum of its proper divisors (13334551).

2100210020201 is a wasteful number, since it uses less digits than its factorization.

2100210020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13334550.

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

Adding to 2100210020201 its reverse (1020200120012), we get a palindrome (3120410140213).

The spelling of 2100210020201 in words is "two trillion, one hundred billion, two hundred ten million, twenty thousand, two hundred one".