2223522 has 36 divisors (see below), whose sum is σ = 5606406. Its totient is φ = 635040.

The previous prime is 2223521. The next prime is 2223541. The reversal of 2223522 is 2253222.

2223522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 441 = 1491^2 + 21^2 .

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

It is a d-powerful number, because it can be written as 2³ + 2⁷ + 2¹⁰ + 3¹⁰ + 5⁴ + 2¹⁶ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 2223495 and 2223504.

It is not an unprimeable number, because it can be changed into a prime (2223521) by changing a digit.

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 in 17 ways as a sum of consecutive naturals, for example, 379 + ... + 2142.

2^2223522 is an apocalyptic number.

2223522 is an abundant number, since it is smaller than the sum of its proper divisors (3382884).

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

2223522 is a wasteful number, since it uses less digits than its factorization.

2223522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543 (or 2533 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 2223522 is about 1491.1478799904. The cubic root of 2223522 is about 130.5210253700.

Adding to 2223522 its reverse (2253222), we get a palindrome (4476744).

The spelling of 2223522 in words is "two million, two hundred twenty-three thousand, five hundred twenty-two".