2100120200201 has 2 divisors, whose sum is σ = 2100120200202. Its totient is φ = 2100120200200.

The previous prime is 2100120200131. The next prime is 2100120200249. The reversal of 2100120200201 is 1020020210012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2097920496400 + 2199703801 = 1448420^2 + 46901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100120200201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2100120250201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060100100 + 1050060100101.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060100101).

Almost surely, 2^{2100120200201} is an apocalyptic number.

It is an amenable number.

2100120200201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100120200201 is an equidigital number, since it uses as much as digits as its factorization.

2100120200201 is an evil number, because the sum of its binary digits is even.

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

Adding to 2100120200201 its reverse (1020020210012), we get a palindrome (3120140410213).

The spelling of 2100120200201 in words is "two trillion, one hundred billion, one hundred twenty million, two hundred thousand, two hundred one".