22101111000091 has 2 divisors, whose sum is σ = 22101111000092. Its totient is φ = 22101111000090.

The previous prime is 22101111000047. The next prime is 22101111000109. The reversal of 22101111000091 is 19000011110122.

Together with next prime (22101111000109) 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 not a de Polignac number, because 22101111000091 - 2³⁷ = 21963672046619 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101111000191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050555500045 + 11050555500046.

It is an arithmetic number, because the mean of its divisors is an integer number (11050555500046).

Almost surely, 2^{22101111000091} is an apocalyptic number.

22101111000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101111000091 is an equidigital number, since it uses as much as digits as its factorization.

22101111000091 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 19.

The spelling of 22101111000091 in words is "twenty-two trillion, one hundred one billion, one hundred eleven million, ninety-one", and thus it is an aban number.