22883221 has 4 divisors (see below), whose sum is σ = 23029132. Its totient is φ = 22737312.

The previous prime is 22883213. The next prime is 22883269. The reversal of 22883221 is 12238822.

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 8328996 + 14554225 = 2886^2 + 3815^2 .

It is a cyclic number.

It is not a de Polignac number, because 22883221 - 2³ = 22883213 is a prime.

It is a super-3 number, since 3×22883221³ (a number of 23 digits) contains 333 as substring.

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 22883221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22883281) 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, 72720 + ... + 73033.

It is an arithmetic number, because the mean of its divisors is an integer number (5757283).

Almost surely, 2^22883221 is an apocalyptic number.

It is an amenable number.

22883221 is a deficient number, since it is larger than the sum of its proper divisors (145911).

22883221 is a wasteful number, since it uses less digits than its factorization.

22883221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145910.

The product of its digits is 3072, while the sum is 28.

The square root of 22883221 is about 4783.6409773310. The cubic root of 22883221 is about 283.9045710258.

It can be divided in two parts, 22883 and 221, that added together give a square (23104 = 152²).

The spelling of 22883221 in words is "twenty-two million, eight hundred eighty-three thousand, two hundred twenty-one".