22216234 has 8 divisors (see below), whose sum is σ = 33344388. Its totient is φ = 11101440.

The previous prime is 22216217. The next prime is 22216241. The reversal of 22216234 is 43261222.

It can be written as a sum of positive squares in 2 ways, for example, as 19829209 + 2387025 = 4453^2 + 1545^2 .

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

It is a super-2 number, since 2×22216234² = 987122106285512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4504 + ... + 8044.

Almost surely, 2^22216234 is an apocalyptic number.

22216234 is a deficient number, since it is larger than the sum of its proper divisors (11128154).

22216234 is a wasteful number, since it uses less digits than its factorization.

22216234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680.

The product of its digits is 1152, while the sum is 22.

The square root of 22216234 is about 4713.4100182352. The cubic root of 22216234 is about 281.1189661874.

Adding to 22216234 its reverse (43261222), we get a palindrome (65477456).

The spelling of 22216234 in words is "twenty-two million, two hundred sixteen thousand, two hundred thirty-four".