2891011221107 has 2 divisors, whose sum is σ = 2891011221108. Its totient is φ = 2891011221106.

The previous prime is 2891011221001. The next prime is 2891011221139. The reversal of 2891011221107 is 7011221101982.

2891011221107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2891011221107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2891011221607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445505610553 + 1445505610554.

It is an arithmetic number, because the mean of its divisors is an integer number (1445505610554).

Almost surely, 2^{2891011221107} is an apocalyptic number.

2891011221107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891011221107 is an equidigital number, since it uses as much as digits as its factorization.

2891011221107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 2891011221107 in words is "two trillion, eight hundred ninety-one billion, eleven million, two hundred twenty-one thousand, one hundred seven".