2212100220091 has 2 divisors, whose sum is σ = 2212100220092. Its totient is φ = 2212100220090.

The previous prime is 2212100220079. The next prime is 2212100220101. The reversal of 2212100220091 is 1900220012122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212100220091 - 2⁵ = 2212100220059 is a prime.

It is not a weakly prime, because it can be changed into another prime (2212100220191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106050110045 + 1106050110046.

It is an arithmetic number, because the mean of its divisors is an integer number (1106050110046).

Almost surely, 2^{2212100220091} is an apocalyptic number.

2212100220091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212100220091 is an equidigital number, since it uses as much as digits as its factorization.

2212100220091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 2212100220091 in words is "two trillion, two hundred twelve billion, one hundred million, two hundred twenty thousand, ninety-one".