22331233 has 8 divisors (see below), whose sum is σ = 23129568. Its totient is φ = 21545664.

The previous prime is 22331203. The next prime is 22331249. The reversal of 22331233 is 33213322.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22331233 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 22331233.

It is not an unprimeable number, because it can be changed into a prime (22331203) 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, 441 + ... + 6697.

It is an arithmetic number, because the mean of its divisors is an integer number (2891196).

Almost surely, 2^22331233 is an apocalyptic number.

It is an amenable number.

22331233 is a deficient number, since it is larger than the sum of its proper divisors (798335).

22331233 is an equidigital number, since it uses as much as digits as its factorization.

22331233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383.

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

The square root of 22331233 is about 4725.5934018914. The cubic root of 22331233 is about 281.6031883530.

Adding to 22331233 its reverse (33213322), we get a palindrome (55544555).

The spelling of 22331233 in words is "twenty-two million, three hundred thirty-one thousand, two hundred thirty-three".