221201120022193 has 2 divisors, whose sum is σ = 221201120022194. Its totient is φ = 221201120022192.

The previous prime is 221201120022191. The next prime is 221201120022247. The reversal of 221201120022193 is 391220021102122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220031298236304 + 1169821785889 = 14833452^2 + 1081583^2 .

It is a cyclic number.

It is not a de Polignac number, because 221201120022193 - 2¹ = 221201120022191 is a prime.

Together with 221201120022191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (221201120022191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600560011096 + 110600560011097.

It is an arithmetic number, because the mean of its divisors is an integer number (110600560011097).

Almost surely, 2^{221201120022193} is an apocalyptic number.

It is an amenable number.

221201120022193 is a deficient number, since it is larger than the sum of its proper divisors (1).

221201120022193 is an equidigital number, since it uses as much as digits as its factorization.

221201120022193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 221201120022193 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred twenty million, twenty-two thousand, one hundred ninety-three".