222201010091 has 2 divisors, whose sum is σ = 222201010092. Its totient is φ = 222201010090.

The previous prime is 222201010037. The next prime is 222201010121. The reversal of 222201010091 is 190010102222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222201010091 - 2³⁰ = 221127268267 is a prime.

It is not a weakly prime, because it can be changed into another prime (222201010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100505045 + 111100505046.

It is an arithmetic number, because the mean of its divisors is an integer number (111100505046).

Almost surely, 2^222201010091 is an apocalyptic number.

222201010091 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201010091 is an equidigital number, since it uses as much as digits as its factorization.

222201010091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 222201010091 in words is "two hundred twenty-two billion, two hundred one million, ten thousand, ninety-one".