1095189434221 has 2 divisors, whose sum is σ = 1095189434222. Its totient is φ = 1095189434220.

The previous prime is 1095189434161. The next prime is 1095189434231. The reversal of 1095189434221 is 1224349815901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1022351520996 + 72837913225 = 1011114^2 + 269885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1095189434221 - 2⁷ = 1095189434093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1095189434231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547594717110 + 547594717111.

It is an arithmetic number, because the mean of its divisors is an integer number (547594717111).

Almost surely, 2^{1095189434221} is an apocalyptic number.

It is an amenable number.

1095189434221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1095189434221 is an equidigital number, since it uses as much as digits as its factorization.

1095189434221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 1095189434221 in words is "one trillion, ninety-five billion, one hundred eighty-nine million, four hundred thirty-four thousand, two hundred twenty-one".