221022101100191 has 2 divisors, whose sum is σ = 221022101100192. Its totient is φ = 221022101100190.

The previous prime is 221022101100181. The next prime is 221022101100221. The reversal of 221022101100191 is 191001101220122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221022101100191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221022101100131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110511050550095 + 110511050550096.

It is an arithmetic number, because the mean of its divisors is an integer number (110511050550096).

Almost surely, 2^{221022101100191} is an apocalyptic number.

221022101100191 is a deficient number, since it is larger than the sum of its proper divisors (1).

221022101100191 is an equidigital number, since it uses as much as digits as its factorization.

221022101100191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 221022101100191 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred one million, one hundred thousand, one hundred ninety-one".