22231333 has 4 divisors (see below), whose sum is σ = 22460620. Its totient is φ = 22002048.

The previous prime is 22231331. The next prime is 22231351. The reversal of 22231333 is 33313222.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3020644 + 19210689 = 1738^2 + 4383^2 .

It is a cyclic number.

It is not a de Polignac number, because 22231333 - 2¹ = 22231331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22231333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231331) 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, 114498 + ... + 114691.

It is an arithmetic number, because the mean of its divisors is an integer number (5615155).

Almost surely, 2^22231333 is an apocalyptic number.

It is an amenable number.

22231333 is a deficient number, since it is larger than the sum of its proper divisors (229287).

22231333 is an equidigital number, since it uses as much as digits as its factorization.

22231333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229286.

The product of its digits is 648, while the sum is 19.

The square root of 22231333 is about 4715.0114527963. The cubic root of 22231333 is about 281.1826381556.

Adding to 22231333 its reverse (33313222), we get a palindrome (55544555).

The spelling of 22231333 in words is "twenty-two million, two hundred thirty-one thousand, three hundred thirty-three".