8012220 has 48 divisors (see below), whose sum is σ = 22988448. Its totient is φ = 2083840.

The previous prime is 8012209. The next prime is 8012227. The reversal of 8012220 is 222108.

8012220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 8012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832 + ... + 4088.

It is an arithmetic number, because the mean of its divisors is an integer number (478926).

Almost surely, 2^8012220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11494224).

8012220 is an abundant number, since it is smaller than the sum of its proper divisors (14976228).

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

8012220 is a wasteful number, since it uses less digits than its factorization.

8012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 8012220 is about 2830.5865116615. The cubic root of 8012220 is about 200.1017815272.

Adding to 8012220 its reverse (222108), we get a palindrome (8234328).

The spelling of 8012220 in words is "eight million, twelve thousand, two hundred twenty".