2101100210101 has 2 divisors, whose sum is σ = 2101100210102. Its totient is φ = 2101100210100.

The previous prime is 2101100210071. The next prime is 2101100210117. The reversal of 2101100210101 is 1010120011012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1460061388900 + 641038821201 = 1208330^2 + 800649^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101100210101 - 2⁷ = 2101100209973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101100210141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050550105050 + 1050550105051.

It is an arithmetic number, because the mean of its divisors is an integer number (1050550105051).

Almost surely, 2^{2101100210101} is an apocalyptic number.

It is an amenable number.

2101100210101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101100210101 is an equidigital number, since it uses as much as digits as its factorization.

2101100210101 is an evil number, because the sum of its binary digits is even.

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

Adding to 2101100210101 its reverse (1010120011012), we get a palindrome (3111220221113).

The spelling of 2101100210101 in words is "two trillion, one hundred one billion, one hundred million, two hundred ten thousand, one hundred one".