22234281 has 8 divisors (see below), whose sum is σ = 29697600. Its totient is φ = 14796912.

The previous prime is 22234229. The next prime is 22234291. The reversal of 22234281 is 18243222.

Added to its reverse (18243222) it gives a triangular number (40477503 = T₈₉₉₇).

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

It is not a de Polignac number, because 22234281 - 2⁶ = 22234217 is a prime.

It is a super-2 number, since 2×22234281² = 988726503173922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22234291) 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 7 ways as a sum of consecutive naturals, for example, 4390 + ... + 7983.

It is an arithmetic number, because the mean of its divisors is an integer number (3712200).

Almost surely, 2^22234281 is an apocalyptic number.

It is an amenable number.

22234281 is a deficient number, since it is larger than the sum of its proper divisors (7463319).

22234281 is a wasteful number, since it uses less digits than its factorization.

22234281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12975.

The product of its digits is 1536, while the sum is 24.

The square root of 22234281 is about 4715.3240609740. The cubic root of 22234281 is about 281.1950664069.

Adding to 22234281 its reverse (18243222), we get a triangular number (40477503 = T₈₉₉₇).

The spelling of 22234281 in words is "twenty-two million, two hundred thirty-four thousand, two hundred eighty-one".