9220229 has 4 divisors (see below), whose sum is σ = 9226476.
Its totient is φ = 9213984.
The previous prime is 9220219. The next prime is 9220241.
9220229 is nontrivially palindromic in base 10.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 4831204 + 4389025 = 2198^2 + 2095^2
It is a cyclic number.
It is not a de Polignac number, because 9220229 - 24 = 9220213 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 9220198 and 9220207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9220219) 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, 467 + ... + 4319.
It is an arithmetic number, because the mean of its divisors is an integer number (2306619).
Almost surely, 29220229 is an apocalyptic number.
It is an amenable number.
9220229 is a deficient number, since it is larger than the sum of its proper divisors (6247).
9220229 is a wasteful number, since it uses less digits than its factorization.
9220229 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6246.
The product of its (nonzero) digits is 1296, while the sum is 26.
The square root of 9220229 is about 3036.4829984704.
The cubic root of 9220229 is about 209.6913758322.
It can be divided in two parts, 9220 and 229, that added together give a palindrome (9449).
The spelling of 9220229 in words is "nine million, two hundred twenty thousand, two hundred twenty-nine".