9220231 has 8 divisors (see below), whose sum is σ = 9576000. Its totient is φ = 8867040.

The previous prime is 9220219. The next prime is 9220241. The reversal of 9220231 is 1320229.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9220231 - 2¹⁷ = 9089159 is a prime.

It is a super-2 number, since 2×9220231² = 170025319386722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9220199 and 9220208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9220241) 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, 9666 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (1197000).

Almost surely, 2^9220231 is an apocalyptic number.

9220231 is a deficient number, since it is larger than the sum of its proper divisors (355769).

9220231 is a wasteful number, since it uses less digits than its factorization.

9220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 9220231 is about 3036.4833277988. The cubic root of 9220231 is about 209.6913909939.

The spelling of 9220231 in words is "nine million, two hundred twenty thousand, two hundred thirty-one".