2110120210091 has 2 divisors, whose sum is σ = 2110120210092. Its totient is φ = 2110120210090.

The previous prime is 2110120210049. The next prime is 2110120210109. The reversal of 2110120210091 is 1900120210112.

Together with next prime (2110120210109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110120210091 is a prime.

It is a super-3 number, since 3×2110120210091³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2110120212091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055060105045 + 1055060105046.

It is an arithmetic number, because the mean of its divisors is an integer number (1055060105046).

Almost surely, 2^{2110120210091} is an apocalyptic number.

2110120210091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110120210091 is an equidigital number, since it uses as much as digits as its factorization.

2110120210091 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 2110120210091 in words is "two trillion, one hundred ten billion, one hundred twenty million, two hundred ten thousand, ninety-one".