22230331 has 4 divisors (see below), whose sum is σ = 22480200. Its totient is φ = 21980464.

The previous prime is 22230311. The next prime is 22230343. The reversal of 22230331 is 13303222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22230331 - 2⁹ = 22229819 is a prime.

It is a super-2 number, since 2×22230331² = 988375232739122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22230301) 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, 124801 + ... + 124978.

It is an arithmetic number, because the mean of its divisors is an integer number (5620050).

Almost surely, 2^22230331 is an apocalyptic number.

22230331 is a deficient number, since it is larger than the sum of its proper divisors (249869).

22230331 is an equidigital number, since it uses as much as digits as its factorization.

22230331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249868.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 22230331 is about 4714.9051952293. The cubic root of 22230331 is about 281.1784136490.

Adding to 22230331 its reverse (13303222), we get a palindrome (35533553).

The spelling of 22230331 in words is "twenty-two million, two hundred thirty thousand, three hundred thirty-one".