109448221573 has 2 divisors, whose sum is σ = 109448221574. Its totient is φ = 109448221572.

The previous prime is 109448221541. The next prime is 109448221607. The reversal of 109448221573 is 375122844901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61416239329 + 48031982244 = 247823^2 + 219162^2 .

It is a cyclic number.

It is not a de Polignac number, because 109448221573 - 2⁵ = 109448221541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109448221513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54724110786 + 54724110787.

It is an arithmetic number, because the mean of its divisors is an integer number (54724110787).

Almost surely, 2^109448221573 is an apocalyptic number.

It is an amenable number.

109448221573 is a deficient number, since it is larger than the sum of its proper divisors (1).

109448221573 is an equidigital number, since it uses as much as digits as its factorization.

109448221573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 109448221573 in words is "one hundred nine billion, four hundred forty-eight million, two hundred twenty-one thousand, five hundred seventy-three".