82116222 has 16 divisors (see below), whose sum is σ = 173893392. Its totient is φ = 25761920.

The previous prime is 82116193. The next prime is 82116247. The reversal of 82116222 is 22261128.

It is a junction number, because it is equal to n+sod(n) for n = 82116192 and 82116201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402429 + ... + 402632.

It is an arithmetic number, because the mean of its divisors is an integer number (10868337).

Almost surely, 2^82116222 is an apocalyptic number.

82116222 is an abundant number, since it is smaller than the sum of its proper divisors (91777170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82116222 is a wasteful number, since it uses less digits than its factorization.

82116222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805083.

The product of its digits is 768, while the sum is 24.

The square root of 82116222 is about 9061.8001522876. The cubic root of 82116222 is about 434.6533054731.

The spelling of 82116222 in words is "eighty-two million, one hundred sixteen thousand, two hundred twenty-two".