82108125122 has 4 divisors (see below), whose sum is σ = 123162187686. Its totient is φ = 41054062560.

The previous prime is 82108125119. The next prime is 82108125163. The reversal of 82108125122 is 22152180128.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82047300721 + 60824401 = 286439^2 + 7799^2 .

It is a super-2 number, since 2×82108125122² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20527031279 + ... + 20527031282.

Almost surely, 2^82108125122 is an apocalyptic number.

82108125122 is a deficient number, since it is larger than the sum of its proper divisors (41054062564).

82108125122 is a wasteful number, since it uses less digits than its factorization.

82108125122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41054062563.

The product of its (nonzero) digits is 5120, while the sum is 32.

The spelling of 82108125122 in words is "eighty-two billion, one hundred eight million, one hundred twenty-five thousand, one hundred twenty-two".