2012110000091 has 2 divisors, whose sum is σ = 2012110000092. Its totient is φ = 2012110000090.

The previous prime is 2012110000067. The next prime is 2012110000129. The reversal of 2012110000091 is 1900000112102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012110000091 - 2²⁶ = 2012042891227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012110005091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006055000045 + 1006055000046.

It is an arithmetic number, because the mean of its divisors is an integer number (1006055000046).

Almost surely, 2^{2012110000091} is an apocalyptic number.

2012110000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012110000091 is an equidigital number, since it uses as much as digits as its factorization.

2012110000091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 2012110000091 its reverse (1900000112102), we get a palindrome (3912110112193).

The spelling of 2012110000091 in words is "two trillion, twelve billion, one hundred ten million, ninety-one", and thus it is an aban number.