2100202120201 has 4 divisors (see below), whose sum is σ = 2100210232212. Its totient is φ = 2100194008192.

The previous prime is 2100202120147. The next prime is 2100202120217. The reversal of 2100202120201 is 1020212020012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 622394766400 + 1477807353801 = 788920^2 + 1215651^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100202120201 - 2⁹ = 2100202119689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100202120271) 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, 3654400 + ... + 4189873.

It is an arithmetic number, because the mean of its divisors is an integer number (525052558053).

Almost surely, 2^{2100202120201} is an apocalyptic number.

It is an amenable number.

2100202120201 is a deficient number, since it is larger than the sum of its proper divisors (8112011).

2100202120201 is an equidigital number, since it uses as much as digits as its factorization.

2100202120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8112010.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2100202120201 its reverse (1020212020012), we get a palindrome (3120414140213).

The spelling of 2100202120201 in words is "two trillion, one hundred billion, two hundred two million, one hundred twenty thousand, two hundred one".