82212206 has 4 divisors (see below), whose sum is σ = 123318312. Its totient is φ = 41106102.

The previous prime is 82212203. The next prime is 82212223. The reversal of 82212206 is 60221228.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82212203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20553050 + ... + 20553053.

It is an arithmetic number, because the mean of its divisors is an integer number (30829578).

Almost surely, 2^82212206 is an apocalyptic number.

82212206 is a deficient number, since it is larger than the sum of its proper divisors (41106106).

82212206 is a wasteful number, since it uses less digits than its factorization.

82212206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41106105.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 82212206 is about 9067.0946835246. The cubic root of 82212206 is about 434.8225920334.

The spelling of 82212206 in words is "eighty-two million, two hundred twelve thousand, two hundred six".