22220333 has 4 divisors (see below), whose sum is σ = 22231068. Its totient is φ = 22209600.

The previous prime is 22220321. The next prime is 22220339. The reversal of 22220333 is 33302222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33302222 = 2 ⋅16651111.

It can be written as a sum of positive squares in 2 ways, for example, as 8773444 + 13446889 = 2962^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220333 - 2¹⁴ = 22203949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220339) 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, 1166 + ... + 6767.

It is an arithmetic number, because the mean of its divisors is an integer number (5557767).

Almost surely, 2^22220333 is an apocalyptic number.

It is an amenable number.

22220333 is a deficient number, since it is larger than the sum of its proper divisors (10735).

22220333 is an equidigital number, since it uses as much as digits as its factorization.

22220333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10734.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 22220333 is about 4713.8448213746. The cubic root of 22220333 is about 281.1362543828.

Adding to 22220333 its reverse (33302222), we get a palindrome (55522555).

The spelling of 22220333 in words is "twenty-two million, two hundred twenty thousand, three hundred thirty-three".