22233215 has 4 divisors (see below), whose sum is σ = 26679864. Its totient is φ = 17786568.

The previous prime is 22233199. The next prime is 22233217. The reversal of 22233215 is 51233222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51233222 = 2 ⋅25616611.

It is a cyclic number.

It is not a de Polignac number, because 22233215 - 2⁴ = 22233199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223317 + ... + 2223326.

It is an arithmetic number, because the mean of its divisors is an integer number (6669966).

Almost surely, 2^22233215 is an apocalyptic number.

22233215 is a deficient number, since it is larger than the sum of its proper divisors (4446649).

22233215 is an equidigital number, since it uses as much as digits as its factorization.

22233215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446648.

The product of its digits is 720, while the sum is 20.

The square root of 22233215 is about 4715.2110239097. The cubic root of 22233215 is about 281.1905724645.

Adding to 22233215 its reverse (51233222), we get a palindrome (73466437).

The spelling of 22233215 in words is "twenty-two million, two hundred thirty-three thousand, two hundred fifteen".