82216226 has 4 divisors (see below), whose sum is σ = 123324342. Its totient is φ = 41108112.

The previous prime is 82216219. The next prime is 82216241. The reversal of 82216226 is 62261228.

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., 69973225 + 12243001 = 8365^2 + 3499^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20554055 + ... + 20554058.

Almost surely, 2^82216226 is an apocalyptic number.

82216226 is a deficient number, since it is larger than the sum of its proper divisors (41108116).

82216226 is a wasteful number, since it uses less digits than its factorization.

82216226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41108115.

The product of its digits is 4608, while the sum is 29.

The square root of 82216226 is about 9067.3163615262. The cubic root of 82216226 is about 434.8296792143.

The spelling of 82216226 in words is "eighty-two million, two hundred sixteen thousand, two hundred twenty-six".