108211257215205 has 8 divisors (see below), whose sum is σ = 173138011544352. Its totient is φ = 57712670514768.

The previous prime is 108211257215203. The next prime is 108211257215231. The reversal of 108211257215205 is 502512752112801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108211257215205 - 2¹ = 108211257215203 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108211257215203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3607041907159 + ... + 3607041907188.

It is an arithmetic number, because the mean of its divisors is an integer number (21642251443044).

Almost surely, 2^{108211257215205} is an apocalyptic number.

108211257215205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108211257215205 is a deficient number, since it is larger than the sum of its proper divisors (64926754329147).

108211257215205 is an equidigital number, since it uses as much as digits as its factorization.

108211257215205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214083814355.

The product of its (nonzero) digits is 112000, while the sum is 42.

The spelling of 108211257215205 in words is "one hundred eight trillion, two hundred eleven billion, two hundred fifty-seven million, two hundred fifteen thousand, two hundred five".