108381176221 has 2 divisors, whose sum is σ = 108381176222. Its totient is φ = 108381176220.

The previous prime is 108381176207. The next prime is 108381176237. The reversal of 108381176221 is 122671183801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107181592996 + 1199583225 = 327386^2 + 34635^2 .

It is a cyclic number.

It is not a de Polignac number, because 108381176221 - 2¹³ = 108381168029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108381176821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54190588110 + 54190588111.

It is an arithmetic number, because the mean of its divisors is an integer number (54190588111).

Almost surely, 2^108381176221 is an apocalyptic number.

It is an amenable number.

108381176221 is a deficient number, since it is larger than the sum of its proper divisors (1).

108381176221 is an equidigital number, since it uses as much as digits as its factorization.

108381176221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 108381176221 in words is "one hundred eight billion, three hundred eighty-one million, one hundred seventy-six thousand, two hundred twenty-one".