22101010091 has 2 divisors, whose sum is σ = 22101010092. Its totient is φ = 22101010090.

The previous prime is 22101010073. The next prime is 22101010111. The reversal of 22101010091 is 19001010122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22101010091 - 2¹⁰ = 22101009067 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101015091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050505045 + 11050505046.

It is an arithmetic number, because the mean of its divisors is an integer number (11050505046).

Almost surely, 2^22101010091 is an apocalyptic number.

22101010091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101010091 is an equidigital number, since it uses as much as digits as its factorization.

22101010091 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 22101010091 in words is "twenty-two billion, one hundred one million, ten thousand, ninety-one".