22221333 has 12 divisors (see below), whose sum is σ = 32142240. Its totient is φ = 14793576.

The previous prime is 22221319. The next prime is 22221343. The reversal of 22221333 is 33312222.

It is a happy number.

It is not a de Polignac number, because 22221333 - 2²⁰ = 21172757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7960 + ... + 10382.

It is an arithmetic number, because the mean of its divisors is an integer number (2678520).

Almost surely, 2^22221333 is an apocalyptic number.

It is an amenable number.

22221333 is a deficient number, since it is larger than the sum of its proper divisors (9920907).

22221333 is a wasteful number, since it uses less digits than its factorization.

22221333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448 (or 3445 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 22221333 is about 4713.9508907073. The cubic root of 22221333 is about 281.1404717219.

Adding to 22221333 its reverse (33312222), we get a palindrome (55533555).

The spelling of 22221333 in words is "twenty-two million, two hundred twenty-one thousand, three hundred thirty-three".