22043331 has 6 divisors (see below), whose sum is σ = 31840380. Its totient is φ = 14695548.

The previous prime is 22043323. The next prime is 22043341. The reversal of 22043331 is 13334022.

It is not a de Polignac number, because 22043331 - 2³ = 22043323 is a prime.

It is a super-2 number, since 2×22043331² = 971816883151122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22043341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224621 + ... + 1224638.

It is an arithmetic number, because the mean of its divisors is an integer number (5306730).

Almost surely, 2^22043331 is an apocalyptic number.

22043331 is a deficient number, since it is larger than the sum of its proper divisors (9797049).

22043331 is a wasteful number, since it uses less digits than its factorization.

22043331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449265 (or 2449262 counting only the distinct ones).

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

The square root of 22043331 is about 4695.0325877463. The cubic root of 22043331 is about 280.3877747937.

Adding to 22043331 its reverse (13334022), we get a palindrome (35377353).

The spelling of 22043331 in words is "twenty-two million, forty-three thousand, three hundred thirty-one".