9222520 has 16 divisors (see below), whose sum is σ = 20750760. Its totient is φ = 3688992.

The previous prime is 9222491. The next prime is 9222523. The reversal of 9222520 is 252229.

9222520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9222491 and 9222500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9222523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115242 + ... + 115321.

Almost surely, 2^9222520 is an apocalyptic number.

It is an amenable number.

9222520 is an abundant number, since it is smaller than the sum of its proper divisors (11528240).

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

9222520 is a wasteful number, since it uses less digits than its factorization.

9222520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230574 (or 230570 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 9222520 is about 3036.8602206885. The cubic root of 9222520 is about 209.7087421094.

Adding to 9222520 its reverse (252229), we get a palindrome (9474749).

The spelling of 9222520 in words is "nine million, two hundred twenty-two thousand, five hundred twenty".