2101010220191 has 2 divisors, whose sum is σ = 2101010220192. Its totient is φ = 2101010220190.

The previous prime is 2101010220173. The next prime is 2101010220203. The reversal of 2101010220191 is 1910220101012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101010220191 - 2¹⁴ = 2101010203807 is a prime.

It is a super-3 number, since 3×2101010220191³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101010220391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050505110095 + 1050505110096.

It is an arithmetic number, because the mean of its divisors is an integer number (1050505110096).

Almost surely, 2^{2101010220191} is an apocalyptic number.

2101010220191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101010220191 is an equidigital number, since it uses as much as digits as its factorization.

2101010220191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 2101010220191 in words is "two trillion, one hundred one billion, ten million, two hundred twenty thousand, one hundred ninety-one".