8212212 has 24 divisors (see below), whose sum is σ = 21291200. Its totient is φ = 2737368.

The previous prime is 8212189. The next prime is 8212213. The reversal of 8212212 is 2122128.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212213) 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, 37912 + ... + 38127.

Almost surely, 2^8212212 is an apocalyptic number.

It is an amenable number.

8212212 is an abundant number, since it is smaller than the sum of its proper divisors (13078988).

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

8212212 is a wasteful number, since it uses less digits than its factorization.

8212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76052 (or 76044 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 8212212 is about 2865.6957270443. The cubic root of 8212212 is about 201.7530229920.

The spelling of 8212212 in words is "eight million, two hundred twelve thousand, two hundred twelve".