22232207 has 4 divisors (see below), whose sum is σ = 22275240. Its totient is φ = 22189176.

The previous prime is 22232201. The next prime is 22232219. The reversal of 22232207 is 70223222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70223222 = 2 ⋅35111611.

It is a cyclic number.

It is not a de Polignac number, because 22232207 - 2⁶ = 22232143 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 (22232201) 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, 20732 + ... + 21777.

It is an arithmetic number, because the mean of its divisors is an integer number (5568810).

Almost surely, 2^22232207 is an apocalyptic number.

22232207 is a deficient number, since it is larger than the sum of its proper divisors (43033).

22232207 is an equidigital number, since it uses as much as digits as its factorization.

22232207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43032.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 22232207 is about 4715.1041345871. The cubic root of 22232207 is about 281.1863229010.

Adding to 22232207 its reverse (70223222), we get a palindrome (92455429).

The spelling of 22232207 in words is "twenty-two million, two hundred thirty-two thousand, two hundred seven".